1 files changed, 2 insertions, 1 deletions
diff --git a/src/qml/compiler/qv4codegen_p.h b/src/qml/compiler/qv4codegen_p.h
index 516f506396..b7992bd8f2 100644
--- a/src/qml/compiler/qv4codegen_p.h
+++ b/src/qml/compiler/qv4codegen_p.h
@@ -219,7 +219,7 @@ public:
             case Subscript:
                 return true;
             default:
-                return false;
+                return requiresTDZCheck;
             }
         }
         bool isConstant() const { return type == Const; }
@@ -394,6 +394,7 @@ public:
         mutable bool isArgOrEval = false;
         bool isReadonly = false;
         bool isReferenceToConst = false;
+        bool requiresTDZCheck = false;
         bool stackSlotIsLocalOrArgument = false;
         bool isVolatile = false;
         bool global = false;