diff --git a/home/private_dot_config/zsh/functions/fnhelp b/home/private_dot_config/zsh/functions/fnhelp
index 5a2c7d6..e3958a1 100644
--- a/home/private_dot_config/zsh/functions/fnhelp
+++ b/home/private_dot_config/zsh/functions/fnhelp
@@ -1,13 +1,18 @@
+#!/usr/bin/env zsh
 ##? fnhelp - use '##?' comments in function files as help docs.
 ##?
 ##? usage: fnhelp <func>
 
-# function fnhelp {
 local ZFUNCDIR="${ZFUNCDIR:-${ZDOTDIR:-~/.config/zsh}/functions}"
+
+if [[ $# -eq 0 ]]; then
+  echo >&2 "no function specified"
+  fnhelp fnhelp
+  return 1
+fi
+
 if [[ ! -f "$ZFUNCDIR/$1" ]]; then
   echo >&2 "fnhelp: function not found '$1'." && return 1
 fi
-command grep "^##?" "$ZFUNCDIR/$1" | cut -c 5-
-# }
 
-# vim: ft=zsh sw=2 ts=2 et
+command grep "^##?" "$ZFUNCDIR/$1" | cut -c 5-