1 files changed, 1 insertions, 1 deletions
diff --git a/src/corelib/tools/qtimeline.h b/src/corelib/tools/qtimeline.h
index 21139b37a8..94e60dce45 100644
--- a/src/corelib/tools/qtimeline.h
+++ b/src/corelib/tools/qtimeline.h
@@ -70,7 +70,7 @@ public:
         CosineCurve
     };
 
-    explicit QTimeLine(int duration = 1000, QObject *parent = 0);
+    explicit QTimeLine(int duration = 1000, QObject *parent = Q_NULLPTR);
     virtual ~QTimeLine();
 
     State state() const;