diff --git a/TOOLS/mpv_identify.sh b/TOOLS/mpv_identify.sh
index 42cd41fe43..980e79a431 100755
--- a/TOOLS/mpv_identify.sh
+++ b/TOOLS/mpv_identify.sh
@@ -67,6 +67,7 @@ EOF
         chapters
         editions
         titles
+        duration
 
         audio
         audio-bitrate