diff --git a/ext/dash/gstisoff.c b/ext/dash/gstisoff.c
index af1f63a26e..f305b7c4f2 100644
--- a/ext/dash/gstisoff.c
+++ b/ext/dash/gstisoff.c
@@ -363,7 +363,9 @@ void
 gst_isoff_sidx_parser_clear (GstSidxParser * parser)
 {
   g_free (parser->sidx.entries);
-  parser->sidx.entries = NULL;
+  memset (parser, 0, sizeof (*parser));
+
+  gst_isoff_sidx_parser_init (parser);
 }
 
 static void