diff --git a/src/_openvpn3 b/src/_openvpn3
index 4158db5..8c1ec9a 100644
--- a/src/_openvpn3
+++ b/src/_openvpn3
@@ -225,7 +225,7 @@ _openvpn3_command() {
     _describe -t commands 'openvpn3 commands' openvpn3_cmds
   else
     local curcontext="$curcontext"
-    cmd="${${openvpn3_cmds[(r)$words[1]:*]%%:*}}"
+    local cmd="${${openvpn3_cmds[(r)$words[1]:*]%%:*}}"
     if (($#cmd)); then
       if (( $+functions[_openvpn3_$cmd] )); then
         _openvpn3_$cmd