diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 30021d3..c367a8d 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -188,6 +188,8 @@
         size_t getActiveBufferIndex() const;
         // return the active buffer
         sp<GraphicBuffer> getActiveBuffer() const;
+        // return wether we have an active buffer
+        bool hasActiveBuffer() const;
         // return the active texture (or fail-over)
         Texture getActiveTexture() const;
         // frees resources associated with all buffers