diff --git a/gst/qtdemux/qtdemux.c b/gst/qtdemux/qtdemux.c
index 7fe7c2a2db..d09cb6f944 100644
--- a/gst/qtdemux/qtdemux.c
+++ b/gst/qtdemux/qtdemux.c
@@ -4776,9 +4776,16 @@ qtdemux_tag_add_num (GstQTDemux * qtdemux, const char *tag1,
     if (type == 0x00000000 && len >= 22) {
       n1 = QT_UINT16 ((guint8 *) data->data + 18);
       n2 = QT_UINT16 ((guint8 *) data->data + 20);
-      GST_DEBUG_OBJECT (qtdemux, "adding tag %d/%d", n1, n2);
-      gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE,
-          tag1, n1, tag2, n2, NULL);
+      if (n1 > 0) {
+        GST_DEBUG_OBJECT (qtdemux, "adding tag %s=%d", tag1, n1);
+        gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE,
+            tag1, n1, NULL);
+      }
+      if (n2 > 0) {
+        GST_DEBUG_OBJECT (qtdemux, "adding tag %s=%d", tag2, n2);
+        gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE,
+            tag2, n2, NULL);
+      }
     }
   }
 }