diff --git a/src/servers/app/EventDispatcher.cpp b/src/servers/app/EventDispatcher.cpp
index 0ea0cdaa66..1cddaf637c 100644
--- a/src/servers/app/EventDispatcher.cpp
+++ b/src/servers/app/EventDispatcher.cpp
@@ -242,6 +242,7 @@ EventDispatcher::EventDispatcher()
 	fNextLatestMouseMoved(NULL),
 	fLastButtons(0),
 	fLastUpdate(system_time()),
+	fDraggingMessage(false),
 	fDragBitmap(NULL),
 	fCursorLock("cursor loop lock"),
 	fHWInterface(NULL),