diff --git a/system/desktop/mail-stuff.nix b/system/desktop/mail-stuff.nix
index 62c309c..3cd5f9b 100644
--- a/system/desktop/mail-stuff.nix
+++ b/system/desktop/mail-stuff.nix
@@ -178,7 +178,14 @@ in {
     text/html; ${pkgs.elinks}/bin/elinks -dump ; copiousoutput;
   '';
 
-  home-manager.users.mainUser.home.file.".muttrc".text = ''
+  home-manager.users.mainUser.home.file.".muttrc".text = let
+
+    index_format = pkgs.writers.writeDash "index_format" ''
+      # http://www.mutt.org/doc/manual/#formatstrings
+      recipent="$(echo $1 | sed 's/[^,]*<\([^>]*\)[^,]*/ \1/g')"
+      echo "%4C %Z %?GI?%GI& ? %[%y-%m-%d %H:%M] %-20.20a %?M?(%3M)& ? %s %> $recipent %?g?%g?%"
+    '';
+  in ''
     # gpg
     set crypt_use_gpgme=yes
     set crypt_autosign=yes
@@ -220,17 +227,7 @@ in {
 
     set sort=threads
 
-    set index_format="${
-      pkgs.writers.writeDash "mutt-index" ''
-        # http://www.mutt.org/doc/manual/#formatstrings
-        recipent="$(echo $1 | sed 's/[^,]*<\([^>]*\)[^,]*/ \1/g')"
-        #     output to mutt
-        #           V
-        echo "%4C %Z %?GI?%GI& ? %[%y-%m-%d %H:%M] %-20.20a %?M?(%3M)& ? %s %> $recipent %?g?%g?%"
-        # args to mutt-index dash script
-        # V
-      ''
-    } %r |"
+    set index_format="${index_format} %r |"
 
     virtual-mailboxes "INBOX" "notmuch://?query=(tag:inbox or (tag:sent and not tag:archive)) AND NOT tag:discourse AND NOT tag:muted"
     virtual-mailboxes "Unread" "notmuch://?query=(tag:unread AND NOT tag:muted)"