diff --git a/modules/services/web-servers/apache-httpd/mercurial.nix b/modules/services/web-servers/apache-httpd/mercurial.nix
index cecc486160b..d2d9e66d4f8 100644
--- a/modules/services/web-servers/apache-httpd/mercurial.nix
+++ b/modules/services/web-servers/apache-httpd/mercurial.nix
@@ -42,7 +42,6 @@ in {
         AllowOverride All
         Options ExecCGI
         AddHandler cgi-script .cgi
-        SetEnv PYTHONPATH "${mercurial}/lib/${pkgs.python.libPrefix}/site-packages"
         PassEnv PYTHONPATH
     </Directory>
   '';
@@ -56,6 +55,8 @@ in {
     (pkgs.python+"/bin")    
   ];
   
+  globalEnvVars = [ { name = "PYTHONPATH"; value = "${mercurial}/lib/${pkgs.python.libPrefix}/site-packages"; } ];
+  
   options = {
     urlPrefix = mkOption {
       default = "/hg";