diff --git a/keyboard_repeat.h b/keyboard_repeat.h
--- a/keyboard_repeat.h
+++ b/keyboard_repeat.h
@@ -47,7 +47,7 @@
     QTimer *m_timer;
     Xkb *m_xkb;
     quint32 m_time;
-    quint32 m_key;
+    quint32 m_key = 0;
 };