diff --git a/subprojects/gst-plugins-good/gst/isomp4/qtdemux.c b/subprojects/gst-plugins-good/gst/isomp4/qtdemux.c
index ed2f844519..773e24f435 100644
--- a/subprojects/gst-plugins-good/gst/isomp4/qtdemux.c
+++ b/subprojects/gst-plugins-good/gst/isomp4/qtdemux.c
@@ -13436,7 +13436,8 @@ qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak, guint32 * mvhd_matrix)
       stream->display_height = h >> 16;
 
       offset = 16;
-      if (len < 86)             /* TODO verify */
+      /* sample description entry (16) + visual sample description (70) */
+      if (len < 86)
         goto corrupt_file;
 
       entry->width = QT_UINT16 (stsd_entry_data + offset + 16);