diff --git a/src/corelib/kernel/qmetatype.cpp b/src/corelib/kernel/qmetatype.cpp
index 251e4614ab..a5fd0c9102 100644
--- a/src/corelib/kernel/qmetatype.cpp
+++ b/src/corelib/kernel/qmetatype.cpp
@@ -2406,8 +2406,8 @@ const QMetaObject *metaObjectForQWidget()
 }
 
 namespace QtMetaTypePrivate {
-bool VectorBoolElements::true_element = true;
-bool VectorBoolElements::false_element = false;
+const bool VectorBoolElements::true_element = true;
+const bool VectorBoolElements::false_element = false;
 }
 
 QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qmetatype.h b/src/corelib/kernel/qmetatype.h
index cecfce65ce..32fd5bd153 100644
--- a/src/corelib/kernel/qmetatype.h
+++ b/src/corelib/kernel/qmetatype.h
@@ -826,8 +826,8 @@ struct IteratorOwner : IteratorOwnerCommon<const_iterator>
 
 struct Q_CORE_EXPORT VectorBoolElements
 {
-  static bool true_element;
-  static bool false_element;
+  static const bool true_element;
+  static const bool false_element;
 };
 
 template<>