diff --git a/etc/_mpv.zsh b/etc/_mpv.zsh
index 64795ddb23..2e4fec408b 100644
--- a/etc/_mpv.zsh
+++ b/etc/_mpv.zsh
@@ -65,7 +65,7 @@ function _mpv_generate_arguments {
         _mpv_completion_arguments+="$name"
       else
         # Find the parent option and use that with this option's name
-        _mpv_completion_arguments+="${_mpv_completion_arguments[(R)${name%-*}=*]/*=/$name=}"
+        _mpv_completion_arguments+="${(S)_mpv_completion_arguments[(R)${name%-*}=*]/*=/$name=}"
       fi
 
     elif [[ $desc == Print* ]]; then