diff --git a/lib/rules/no-constant-condition.js b/lib/rules/no-constant-condition.js
index 744b8c6245f..58691b6da6d 100644
--- a/lib/rules/no-constant-condition.js
+++ b/lib/rules/no-constant-condition.js
@@ -103,10 +103,10 @@ module.exports = {
                     return true;
 
                 case "ArrayExpression": {
-                    if (!(node.parent.operator === "+")) {
-                        return true;
+                    if (node.parent.operator === "+" && node.parent.type === "BinaryExpression") {
+                        return node.elements.every(element => isConstant(element, false));
                     }
-                    return node.elements.every(element => isConstant(element, false));
+                    return true;
                 }
 
                 case "UnaryExpression":