diff --git a/src/kits/app/Looper.cpp b/src/kits/app/Looper.cpp
index 4e869cd0c4..8ab09cf262 100644
--- a/src/kits/app/Looper.cpp
+++ b/src/kits/app/Looper.cpp
@@ -1111,6 +1111,7 @@ void BLooper::InitData()
 	fRunCalled = false;
 	fQueue = new BMessageQueue();
 	fCommonFilters = NULL;
+	fLastMessage = NULL;
 	fPreferred = NULL;
 	fTaskID = B_ERROR;
 	fTerminating = false;