diff --git a/gst/matroska/matroska-ids.c b/gst/matroska/matroska-ids.c
index 5bed5e6dd3..8e6239594a 100644
--- a/gst/matroska/matroska-ids.c
+++ b/gst/matroska/matroska-ids.c
@@ -107,6 +107,7 @@ gst_matroska_track_init_subtitle_context (GstMatroskaTrackContext ** p_context)
 
   (*p_context)->type = GST_MATROSKA_TRACK_TYPE_SUBTITLE;
   subtitle_context->invalid_utf8 = FALSE;
+  subtitle_context->seen_markup_tag = FALSE;
   return TRUE;
 }