diff --git a/include/ui/GraphicBuffer.h b/include/ui/GraphicBuffer.h
index 54f4cd3..95ca0f3 100644
--- a/include/ui/GraphicBuffer.h
+++ b/include/ui/GraphicBuffer.h
@@ -91,6 +91,12 @@
             uint32_t inLayerCount, uint32_t inUsage, uint32_t inStride,
             native_handle_t* inHandle, bool keepOwnership);
 
+    // create a buffer from an existing handle using gralloc1
+    GraphicBuffer(uint32_t inWidth, uint32_t inHeight, PixelFormat inFormat,
+            uint32_t inLayerCount, uint32_t inProducerUsage,
+            uint32_t inConsumerUsage, uint32_t inStride,
+            native_handle_t* inHandle, bool keepOwnership);
+
     // create a buffer from an existing ANativeWindowBuffer
     GraphicBuffer(ANativeWindowBuffer* buffer, bool keepOwnership);