diff --git a/machines/enka/nushell/configuration.nu b/machines/enka/nushell/configuration.nu
index 209521f..7203101 100644
--- a/machines/enka/nushell/configuration.nu
+++ b/machines/enka/nushell/configuration.nu
@@ -131,7 +131,7 @@ $env.config.completions = {
     external: {
         enable:      true
         max_results: 100
-        completer:   {|tokens|
+        completer:   {|tokens: list<string>|
             let expanded_alias = scope aliases | where name == $tokens.0 | get --ignore-errors expansion.0
 
             let tokens = if $expanded_alias != null  {