diff --git a/completions/feh b/completions/feh
index e53ca2b1..3b2d440b 100644
--- a/completions/feh
+++ b/completions/feh
@@ -52,8 +52,8 @@ _feh()
             return
             ;;
         -S|--sort)
-            COMPREPLY=( $( compgen -W 'name filename width height pixels size
-                format' -- "$cur" ) )
+            COMPREPLY=( $( compgen -W 'name filename mtime width height
+                pixels size format' -- "$cur" ) )
             return
             ;;
         -R|--reload|-H|--limit-height|-W|--limit-width|-E|--thumb-height|\