diff --git a/krebs/5pkgs/simple/withGetopt.nix b/krebs/5pkgs/simple/withGetopt.nix
index 179051bdf..d20802fb2 100644
--- a/krebs/5pkgs/simple/withGetopt.nix
+++ b/krebs/5pkgs/simple/withGetopt.nix
@@ -20,7 +20,7 @@ opt-spec: cmd-spec: let
 
   # true if b requires a to define its default value
   opts-before = a: b:
-    test ".*[$]${stringAsChars (c: "[${c}]") a.varname}\\>.*" (b.default or "");
+    test ".*[$]${stringAsChars (c: "[${c}]") a.varname}([^0-9A-Za-z_].*)?" (b.default or "");
 
   opts-list = let
     sort-out = toposort opts-before (attrValues opts);
diff --git a/tv/2configs/vim.nix b/tv/2configs/vim.nix
index ca4718646..8a27b606a 100644
--- a/tv/2configs/vim.nix
+++ b/tv/2configs/vim.nix
@@ -173,9 +173,13 @@ let {
         syn cluster nix_ind_strings contains=NixIND_STRING
         syn cluster nix_strings contains=NixSTRING
 
-        ${concatStringsSep "\n" (mapAttrsToList (lang: { extraStart ? null }: let
+        ${concatStringsSep "\n" (mapAttrsToList (name: {
+          extraStart ? null,
+          lang ? name
+        }:
+        let
           startAlts = filter isString [
-            ''/\* ${lang} \*/''
+            ''/\* ${name} \*/''
             extraStart
           ];
           sigil = ''\(${concatStringsSep ''\|'' startAlts}\)[ \t\r\n]*'';