diff --git a/krebs/3modules/tinc.nix b/krebs/3modules/tinc.nix
index ed00d187c..8b6e959d4 100644
--- a/krebs/3modules/tinc.nix
+++ b/krebs/3modules/tinc.nix
@@ -63,7 +63,7 @@ let
           '';
         };
         tincUp = mkOption {
-          type = types.string;
+          type = types.str;
           default = let
             net = tinc.config.host.nets.${netname};
             iproute = tinc.config.iproutePackage;