diff --git a/src/plugins/qmljsinspector/qmljsdelta.cpp b/src/plugins/qmljsinspector/qmljsdelta.cpp
index e01bc0bd80def7d9372ca97f58e0fc308ee68d61..5a90b7fb34432dbe47d83ebaced4a987f883e27f 100644
--- a/src/plugins/qmljsinspector/qmljsdelta.cpp
+++ b/src/plugins/qmljsinspector/qmljsdelta.cpp
@@ -39,6 +39,8 @@ using namespace QmlJS;
 using namespace QmlJS::AST;
 using namespace QmlJSInspector::Internal;
 
+namespace {
+
 /*!
     Build a hash of the parents
  */
@@ -273,7 +275,7 @@ static QString _methodName(UiSourceElement *source)
     return QString();
 }
 
-
+}
 
 Delta::DebugIdMap Delta::operator()(const Document::Ptr &doc1, const Document::Ptr &doc2, const DebugIdMap &debugIds)
 {