diff --git a/lib/rules/space-infix-ops.js b/lib/rules/space-infix-ops.js
index 45b76795eae..254616d998d 100644
--- a/lib/rules/space-infix-ops.js
+++ b/lib/rules/space-infix-ops.js
@@ -69,7 +69,10 @@ module.exports = {
             context.report({
                 node: mainNode,
                 loc: culpritToken.loc.start,
-                message: "Infix operators must be spaced.",
+                message: "Operator '{{operator}}' must be spaced.",
+                data: {
+                    operator: culpritToken.value
+                },
                 fix(fixer) {
                     const previousToken = sourceCode.getTokenBefore(culpritToken);
                     const afterToken = sourceCode.getTokenAfter(culpritToken);
diff --git a/tests/lib/rules/space-infix-ops.js b/tests/lib/rules/space-infix-ops.js
index 34eada46e42..76939f7fe5b 100644
--- a/tests/lib/rules/space-infix-ops.js
+++ b/tests/lib/rules/space-infix-ops.js
@@ -54,7 +54,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a+b",
             output: "a + b",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '+' must be spaced.",
                 type: "BinaryExpression",
                 line: 1,
                 column: 2
@@ -64,7 +64,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a +b",
             output: "a + b",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '+' must be spaced.",
                 type: "BinaryExpression",
                 line: 1,
                 column: 3
@@ -74,7 +74,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a+ b",
             output: "a + b",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '+' must be spaced.",
                 type: "BinaryExpression",
                 line: 1,
                 column: 2
@@ -84,7 +84,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a||b",
             output: "a || b",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '||' must be spaced.",
                 type: "LogicalExpression",
                 line: 1,
                 column: 2
@@ -94,7 +94,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a ||b",
             output: "a || b",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '||' must be spaced.",
                 type: "LogicalExpression",
                 line: 1,
                 column: 3
@@ -104,7 +104,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a|| b",
             output: "a || b",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '||' must be spaced.",
                 type: "LogicalExpression",
                 line: 1,
                 column: 2
@@ -114,7 +114,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a=b",
             output: "a = b",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '=' must be spaced.",
                 type: "AssignmentExpression",
                 line: 1,
                 column: 2
@@ -124,7 +124,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a= b",
             output: "a = b",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '=' must be spaced.",
                 type: "AssignmentExpression",
                 line: 1,
                 column: 2
@@ -134,7 +134,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a =b",
             output: "a = b",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '=' must be spaced.",
                 type: "AssignmentExpression",
                 line: 1,
                 column: 3
@@ -144,7 +144,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a?b:c",
             output: "a ? b:c",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '?' must be spaced.",
                 type: "ConditionalExpression",
                 line: 1,
                 column: 2
@@ -154,7 +154,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a?b : c",
             output: "a ? b : c",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '?' must be spaced.",
                 type: "ConditionalExpression",
                 line: 1,
                 column: 2
@@ -164,7 +164,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a ? b:c",
             output: "a ? b : c",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator ':' must be spaced.",
                 type: "ConditionalExpression",
                 line: 1,
                 column: 6
@@ -174,7 +174,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a? b : c",
             output: "a ? b : c",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '?' must be spaced.",
                 type: "ConditionalExpression",
                 line: 1,
                 column: 2
@@ -184,7 +184,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a ?b : c",
             output: "a ? b : c",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '?' must be spaced.",
                 type: "ConditionalExpression",
                 line: 1,
                 column: 3
@@ -194,7 +194,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a ? b: c",
             output: "a ? b : c",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator ':' must be spaced.",
                 type: "ConditionalExpression",
                 line: 1,
                 column: 6
@@ -204,7 +204,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "a ? b :c",
             output: "a ? b : c",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator ':' must be spaced.",
                 type: "ConditionalExpression",
                 line: 1,
                 column: 7
@@ -214,7 +214,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "var a=b;",
             output: "var a = b;",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '=' must be spaced.",
                 type: "VariableDeclarator",
                 line: 1,
                 column: 6
@@ -224,7 +224,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "var a= b;",
             output: "var a = b;",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '=' must be spaced.",
                 type: "VariableDeclarator",
                 line: 1,
                 column: 6
@@ -234,7 +234,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "var a =b;",
             output: "var a = b;",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '=' must be spaced.",
                 type: "VariableDeclarator",
                 line: 1,
                 column: 7
@@ -244,7 +244,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "var a = b, c=d;",
             output: "var a = b, c = d;",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '=' must be spaced.",
                 type: "VariableDeclarator",
                 line: 1,
                 column: 13
@@ -257,7 +257,7 @@ ruleTester.run("space-infix-ops", rule, {
                 int32Hint: true
             }],
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '|' must be spaced.",
                 type: "BinaryExpression",
                 line: 1,
                 column: 2
@@ -267,7 +267,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "var output = test || (test && test.value) ||(test2 && test2.value);",
             output: "var output = test || (test && test.value) || (test2 && test2.value);",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '||' must be spaced.",
                 type: "LogicalExpression",
                 line: 1,
                 column: 43
@@ -277,7 +277,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "var output = a ||(b && c.value) || (d && e.value);",
             output: "var output = a || (b && c.value) || (d && e.value);",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '||' must be spaced.",
                 type: "LogicalExpression",
                 line: 1,
                 column: 16
@@ -287,7 +287,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "var output = a|| (b && c.value) || (d && e.value);",
             output: "var output = a || (b && c.value) || (d && e.value);",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '||' must be spaced.",
                 type: "LogicalExpression",
                 line: 1,
                 column: 15
@@ -298,7 +298,7 @@ ruleTester.run("space-infix-ops", rule, {
             output: "const my_object = {key: 'value'}",
             parserOptions: { ecmaVersion: 6 },
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '=' must be spaced.",
                 type: "VariableDeclarator",
                 line: 1,
                 column: 16
@@ -309,12 +309,12 @@ ruleTester.run("space-infix-ops", rule, {
             output: "var {a = 0} = bar;",
             parserOptions: { ecmaVersion: 6 },
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '=' must be spaced.",
                 line: 1,
                 column: 7,
                 nodeType: "AssignmentPattern"
             }, {
-                message: "Infix operators must be spaced.",
+                message: "Operator '=' must be spaced.",
                 line: 1,
                 column: 10,
                 nodeType: "VariableDeclarator"
@@ -325,7 +325,7 @@ ruleTester.run("space-infix-ops", rule, {
             output: "function foo(a = 0) { }",
             parserOptions: { ecmaVersion: 6 },
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '=' must be spaced.",
                 line: 1,
                 column: 15,
                 nodeType: "AssignmentPattern"
@@ -336,7 +336,7 @@ ruleTester.run("space-infix-ops", rule, {
             output: "a ** b",
             parserOptions: { ecmaVersion: 7 },
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '**' must be spaced.",
                 line: 1,
                 column: 2,
                 nodeType: "BinaryExpression"
@@ -346,7 +346,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "'foo'in{}",
             output: "'foo' in {}",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator 'in' must be spaced.",
                 line: 1,
                 column: 6,
                 nodeType: "BinaryExpression"
@@ -356,7 +356,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "'foo'instanceof{}",
             output: "'foo' instanceof {}",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator 'instanceof' must be spaced.",
                 line: 1,
                 column: 6,
                 nodeType: "BinaryExpression"
@@ -369,7 +369,7 @@ ruleTester.run("space-infix-ops", rule, {
             code: "var a: Foo= b;",
             output: "var a: Foo = b;",
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '=' must be spaced.",
                 type: "VariableDeclarator",
                 line: 1,
                 column: 11
@@ -381,7 +381,7 @@ ruleTester.run("space-infix-ops", rule, {
             output: "function foo(a: number = 0): Foo { }",
             parserOptions: { ecmaVersion: 6 },
             errors: [{
-                message: "Infix operators must be spaced.",
+                message: "Operator '=' must be spaced.",
                 line: 1,
                 column: 23,
                 nodeType: "AssignmentPattern"