diff --git a/src/threading/event.cpp b/src/threading/event.cpp
index 0d5928f10..a22c6628b 100644
--- a/src/threading/event.cpp
+++ b/src/threading/event.cpp
@@ -35,6 +35,8 @@ Event::Event()
 	pthread_mutex_init(&mutex, NULL);
 	notified = false;
 #	endif
+#elif USE_CPP11_MUTEX
+	notified = false;
 #endif
 }