2 files changed, 4 insertions, 4 deletions

diff --git a/src/corelib/kernel/qcoreevent.h b/src/corelib/kernel/qcoreevent.h
index 1f36f9c9c8..cac89f2b13 100644
--- a/src/corelib/kernel/qcoreevent.h
+++ b/src/corelib/kernel/qcoreevent.h
@@ -288,7 +288,7 @@ public:
         MaxUser = 65535                         // last user event id
     };
 
-    QEvent(Type type);
+    explicit QEvent(Type type);
     virtual ~QEvent();
     inline Type type() const { return static_cast<Type>(t); }
     inline bool spontaneous() const { return spont; }
@@ -330,7 +330,7 @@ private:
 class Q_CORE_EXPORT QTimerEvent : public QEvent
 {
 public:
-    QTimerEvent( int timerId );
+    explicit QTimerEvent( int timerId );
     ~QTimerEvent();
     int timerId() const { return id; }
 protected:
@@ -355,7 +355,7 @@ protected:
 class Q_CORE_EXPORT QDynamicPropertyChangeEvent : public QEvent
 {
 public:
-    QDynamicPropertyChangeEvent(const QByteArray &name);
+    explicit QDynamicPropertyChangeEvent(const QByteArray &name);
     ~QDynamicPropertyChangeEvent();
 
     inline QByteArray propertyName() const { return n; }
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; }
 };