diff --git a/libs/surfaceflinger/MessageQueue.cpp b/libs/surfaceflinger/MessageQueue.cpp
index a027e2b..fb70b6a 100644
--- a/libs/surfaceflinger/MessageQueue.cpp
+++ b/libs/surfaceflinger/MessageQueue.cpp
@@ -51,6 +51,7 @@
 // ---------------------------------------------------------------------------
 
 MessageQueue::MessageQueue()
+    : mInvalidate(false)
 {
     mInvalidateMessage = new MessageBase(INVALIDATE);
 }