diff --git a/gfx/layers/client/TextureClient.cpp b/gfx/layers/client/TextureClient.cpp
index 8ab7ee69f01..59348da94af 100644
--- a/gfx/layers/client/TextureClient.cpp
+++ b/gfx/layers/client/TextureClient.cpp
@@ -861,7 +861,7 @@ BufferTextureClient::AllocateForYCbCr(gfx::IntSize aYSize,
 
   size_t bufSize = YCbCrImageDataSerializer::ComputeMinBufferSize(aYSize,
                                                                   aCbCrSize);
-  if (!Allocate(bufSize)) {
+  if (!bufSize || !Allocate(bufSize)) {
     return false;
   }
   YCbCrImageDataSerializer serializer(GetBuffer(), GetBufferSize());