diff --git a/krebs/3modules/rtorrent.nix b/krebs/3modules/rtorrent.nix
index 1f88a49e1..11f5b1407 100644
--- a/krebs/3modules/rtorrent.nix
+++ b/krebs/3modules/rtorrent.nix
@@ -186,7 +186,7 @@ let
     };
 
     extraConfig = mkOption {
-      type = types.string;
+      type = types.str;
       description = ''
         config to be placed into ${cfg.workDir}/.rtorrent.rc