diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 194c29550..833181ba4 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -380,6 +380,7 @@ sp<GraphicBuffer> Layer::requestBuffer(int index,
             mReqWidth  = reqWidth;
             mReqHeight = reqHeight;
             mReqFormat = reqFormat;
+            mFixedSize = reqWidth && reqHeight;
 
             lcblk->reallocateAllExcept(index);
         }