1 files changed, 2 insertions, 2 deletions
diff --git a/src/corelib/statemachine/qstatemachine.h b/src/corelib/statemachine/qstatemachine.h
index d6c3b7bfa7..5fca034386 100644
--- a/src/corelib/statemachine/qstatemachine.h
+++ b/src/corelib/statemachine/qstatemachine.h
@@ -104,8 +104,8 @@ public:
         NoCommonAncestorForTransitionError
     };
 
-    explicit QStateMachine(QObject *parent = 0);
-    explicit QStateMachine(QState::ChildMode childMode, QObject *parent = 0);
+    explicit QStateMachine(QObject *parent = Q_NULLPTR);
+    explicit QStateMachine(QState::ChildMode childMode, QObject *parent = Q_NULLPTR);
     ~QStateMachine();
 
     void addState(QAbstractState *state);