diff --git a/src/plugins/clangcodemodel/clangdiagnosticfilter.h b/src/plugins/clangcodemodel/clangdiagnosticfilter.h
index 0fe164ecf07..a61734718ea 100644
--- a/src/plugins/clangcodemodel/clangdiagnosticfilter.h
+++ b/src/plugins/clangcodemodel/clangdiagnosticfilter.h
@@ -49,7 +49,7 @@ private:
     void filterFixits();
 
 private:
-    const QString &m_filePath;
+    const QString m_filePath;
 
     QVector<ClangBackEnd::DiagnosticContainer> m_warningDiagnostics;
     QVector<ClangBackEnd::DiagnosticContainer> m_errorDiagnostics;