---
 completions/curl |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/completions/curl
+++ b/completions/curl
@@ -91,7 +91,9 @@ _curl()
     esac
 
     if [[ $cur == -* ]]; then
-        COMPREPLY=($(compgen -W '$(_parse_help "$1")' -- "$cur"))
+        COMPREPLY=($(compgen -W '$(_parse_help "$1" "--help all")' -- "$cur"))
+        [[ $COMPREPLY ]] ||
+            COMPREPLY=($(compgen -W '$(_parse_help "$1")' -- "$cur"))
     fi
 } &&
     complete -F _curl curl