1 files changed, 1 insertions, 1 deletions
diff --git a/src/corelib/kernel/qeventdispatcher_win_p.h b/src/corelib/kernel/qeventdispatcher_win_p.h
index a831ad39e8..565f1ef4b3 100644
--- a/src/corelib/kernel/qeventdispatcher_win_p.h
+++ b/src/corelib/kernel/qeventdispatcher_win_p.h
@@ -131,7 +131,7 @@ struct WinTimerInfo {                           // internal timer info
 class QZeroTimerEvent : public QTimerEvent
 {
 public:
-    inline QZeroTimerEvent(int timerId)
+    explicit inline QZeroTimerEvent(int timerId)
         : QTimerEvent(timerId)
     { t = QEvent::ZeroTimerEvent; }
 };