diff --git a/makefu/2configs/default.nix b/makefu/2configs/default.nix
index 110d1ec80..a7c2a983e 100644
--- a/makefu/2configs/default.nix
+++ b/makefu/2configs/default.nix
@@ -22,9 +22,9 @@ with config.krebs.lib;
     build = {
       user = config.krebs.users.makefu;
       source = let inherit (config.krebs.build) host user; in {
-        nixpkgs = if config.makefu.full-populate or (getEnv "dummy_secrets" == "true") then
+        nixpkgs = if config.makefu.full-populate || (getEnv "dummy_secrets" == "true") then
           { # stable @ 2016-07-20
-            git = trace "Populating nixpkgs via full clone" { url = https://github.com/nixos/nixpkgs; ref = "125ffff"; };
+            git = { url = https://github.com/nixos/nixpkgs; ref = "125ffff"; };
           }
             else
             # TODO use http, once it is implemented
@@ -32,7 +32,7 @@ with config.krebs.lib;
 
             ## prepare so we do not have to wait for rsync:
             ## cd /var/src; curl https://github.com/nixos/nixpkgs/tarball/125ffff  -L | tar zx  && mv NixOS-nixpkgs-125ffff nixpkgs
-            trace "Populating nixpkgs with local directory" { file = "/home/makefu/store/125ffff";};
+            { file = "/home/makefu/store/125ffff";};
         secrets.file =
           if getEnv "dummy_secrets" == "true"
             then toString <stockholm/makefu/6tests/data/secrets>