diff --git a/lib/rules/operator-assignment.js b/lib/rules/operator-assignment.js
index b19ba0d02e1..c35d23e2a92 100644
--- a/lib/rules/operator-assignment.js
+++ b/lib/rules/operator-assignment.js
@@ -219,7 +219,7 @@ module.exports = {
 
                                 if (
                                     operatorToken.range[1] === firstRightToken.range[0] &&
-                                    !astUtils.canTokensBeAdjacent(newOperator, firstRightToken)
+                                    !astUtils.canTokensBeAdjacent({ type: "Punctuator", value: newOperator }, firstRightToken)
                                 ) {
                                     rightTextPrefix = " "; // foo+=+bar -> foo= foo+ +bar
                                 }
diff --git a/tests/lib/rules/operator-assignment.js b/tests/lib/rules/operator-assignment.js
index 4c6819c2703..b7174b9ee72 100644
--- a/tests/lib/rules/operator-assignment.js
+++ b/tests/lib/rules/operator-assignment.js
@@ -358,6 +358,11 @@ ruleTester.run("operator-assignment", rule, {
         output: "foo= foo+-bar", // tokens can be adjacent
         options: ["never"],
         errors: UNEXPECTED_OPERATOR_ASSIGNMENT
+    }, {
+        code: "foo/=bar",
+        output: "foo= foo/bar", // tokens can be adjacent
+        options: ["never"],
+        errors: UNEXPECTED_OPERATOR_ASSIGNMENT
     }, {
         code: "foo+=+bar",
         output: "foo= foo+ +bar", // tokens cannot be adjacent, insert a space between