diff --git a/src/libs/qmuparser/qmuparsercallback_p.h b/src/libs/qmuparser/qmuparsercallback_p.h
index 7fa5f9132..e84dc3612 100644
--- a/src/libs/qmuparser/qmuparsercallback_p.h
+++ b/src/libs/qmuparser/qmuparsercallback_p.h
@@ -37,7 +37,7 @@ QT_WARNING_DISABLE_GCC("-Wnon-virtual-dtor")
 namespace qmu
 {
 
-class QmuParserCallbackData final : public QSharedData
+class QmuParserCallbackData : public QSharedData
 {
 public:
     QmuParserCallbackData();