diff --git a/krebs/2configs/shared-buildbot.nix b/krebs/2configs/shared-buildbot.nix
index efb41cc3e..51984209c 100644
--- a/krebs/2configs/shared-buildbot.nix
+++ b/krebs/2configs/shared-buildbot.nix
@@ -14,7 +14,7 @@
     locations."/".extraConfig = ''
       proxy_set_header Upgrade $http_upgrade;
       proxy_set_header Connection "upgrade";
-      proxy_pass http://localhost:${toString config.krebs.buildbot.master.web.port};
+      proxy_pass http://127.0.0.1:${toString config.krebs.buildbot.master.web.port};
     '';
   };