diff --git a/subprojects/gst-plugins-bad/gst-libs/gst/codecparsers/gstvp9parser.c b/subprojects/gst-plugins-bad/gst-libs/gst/codecparsers/gstvp9parser.c
index 33e1f0ebd4..cb82a0816f 100644
--- a/subprojects/gst-plugins-bad/gst-libs/gst/codecparsers/gstvp9parser.c
+++ b/subprojects/gst-plugins-bad/gst-libs/gst/codecparsers/gstvp9parser.c
@@ -646,6 +646,7 @@ gst_vp9_parser_new (void)
     return NULL;
 
   parser->priv = priv;
+  parser->subsampling_x = parser->subsampling_y = -1;
 
   return parser;
 }