diff --git a/subprojects/gst-plugins-bad/ext/codec2json/gstav12json.c b/subprojects/gst-plugins-bad/ext/codec2json/gstav12json.c
index 5bc8907eb5..e457d8f252 100644
--- a/subprojects/gst-plugins-bad/ext/codec2json/gstav12json.c
+++ b/subprojects/gst-plugins-bad/ext/codec2json/gstav12json.c
@@ -869,7 +869,7 @@ gst_av1_2_json_chain (GstPad * sinkpad, GstObject * object, GstBuffer * in_buf)
 {
   GstAV12json *self = GST_AV1_2_JSON (object);
   JsonObject *json = self->json;
-  GstAV1ParserResult pres;
+  GstAV1ParserResult pres = GST_AV1_PARSER_OK;
   GstAV1OBU obu;
   GstBuffer *out_buf;
   gchar *json_string;