1 files changed, 4 insertions, 2 deletions
diff --git a/src/lib/corelib/language/builtindeclarations.cpp b/src/lib/corelib/language/builtindeclarations.cpp
index b4cf7cda2..4f5e84f7d 100644
--- a/src/lib/corelib/language/builtindeclarations.cpp
+++ b/src/lib/corelib/language/builtindeclarations.cpp
@@ -83,8 +83,10 @@ void BuiltinDeclarations::setupItemForBuiltinType(Item *item) const
         if (!value) {
             JSSourceValuePtr sourceValue = JSSourceValue::create();
             sourceValue->setFile(item->file());
-            sourceValue->setSourceCode(pd.initialValueSource().isEmpty() ?
-                                           QLatin1String("undefined") : pd.initialValueSource());
+            static const QString undefinedKeyword = QLatin1String("undefined");
+            sourceValue->setSourceCode(pd.initialValueSource().isEmpty()
+                                       ? QStringRef(&undefinedKeyword)
+                                       : QStringRef(&pd.initialValueSource()));
             value = sourceValue;
         }
     }