diff --git a/libs/ui/GraphicBuffer.cpp b/libs/ui/GraphicBuffer.cpp
index e55db30f8..0d7772724 100644
--- a/libs/ui/GraphicBuffer.cpp
+++ b/libs/ui/GraphicBuffer.cpp
@@ -112,6 +112,7 @@ void GraphicBuffer::free_handle()
         GraphicBufferAllocator& allocator(GraphicBufferAllocator::get());
         allocator.free(handle);
     }
+    handle = NULL;
     mWrappedBuffer = 0;
 }