diff --git a/krebs/3modules/buildbot/master.nix b/krebs/3modules/buildbot/master.nix
index 7078000fe..5870c3145 100644
--- a/krebs/3modules/buildbot/master.nix
+++ b/krebs/3modules/buildbot/master.nix
@@ -308,7 +308,7 @@ let
   imp = {
 
     users.extraUsers.buildbotMaster = {
-      uid = 672626386; #genid buildbotMaster
+      uid = genid "buildbotMaster";
       description = "Buildbot Master";
       home = cfg.workDir;
       createHome = false;