diff --git a/gst-libs/gst/video/video.h b/gst-libs/gst/video/video.h
index feafdb292b..d139033e9f 100644
--- a/gst-libs/gst/video/video.h
+++ b/gst-libs/gst/video/video.h
@@ -259,6 +259,8 @@ struct _GstVideoFormatInfo {
   GstVideoFormat unpack_format;
   GstVideoFormatUnpack unpack_func;
   GstVideoFormatPack pack_func;
+
+  gpointer _gst_reserved[GST_PADDING];
 };
 
 #define GST_VIDEO_FORMAT_INFO_FORMAT(info)       ((info)->format)