diff --git a/default.nix b/default.nix
--- a/default.nix
+++ b/default.nix
@@ -120,6 +120,7 @@ let
         cp -v vcsserver/VERSION $out/nix-support/rccontrol/version
         echo "DONE: Meta information for rccontrol written"
 
+        # python based programs need to be wrapped
         ln -s ${self.pyramid}/bin/* $out/bin/
         ln -s ${self.gunicorn}/bin/gunicorn $out/bin/
 
@@ -132,12 +133,14 @@ let
         ln -s ${self.mercurial}/bin/hg $out/bin
         ln -s ${pkgs.subversion}/bin/svn* $out/bin
 
-        for file in $out/bin/*; do
+        for file in $out/bin/*;
+        do
           wrapProgram $file \
             --set PATH $PATH \
             --set PYTHONPATH $PYTHONPATH \
             --set PYTHONHASHSEED random
         done
+
       '';
 
     });