diff --git a/include/rtdef.h b/include/rtdef.h
index 09574d2233..e654711438 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -866,6 +866,7 @@ enum
     RTGRAPHIC_PIXEL_FORMAT_RGB444,
     RTGRAPHIC_PIXEL_FORMAT_RGB565,
     RTGRAPHIC_PIXEL_FORMAT_RGB565P,
+    RTGRAPHIC_PIXEL_FORMAT_BGR565 = RTGRAPHIC_PIXEL_FORMAT_RGB565P,
     RTGRAPHIC_PIXEL_FORMAT_RGB666,
     RTGRAPHIC_PIXEL_FORMAT_RGB888,
     RTGRAPHIC_PIXEL_FORMAT_ARGB888