diff --git a/gst/qtdemux/qtdemux.c b/gst/qtdemux/qtdemux.c
index dd9410e6a7..9849af3e70 100644
--- a/gst/qtdemux/qtdemux.c
+++ b/gst/qtdemux/qtdemux.c
@@ -5633,7 +5633,8 @@ qtdemux_tag_add_classification (GstQTDemux * qtdemux, const char *tag,
   table = QT_UINT16 ((guint8 *) node->data + offset);
 
   /* Language code skipped */
-  offset += 2;
+
+  offset += 4;
 
   /* Tag format: "XXXX://Y[YYYY]/classification info string"
    * XXXX: classification entity, fixed length 4 chars.