diff --git a/default.nix b/default.nix
--- a/default.nix
+++ b/default.nix
@@ -208,7 +208,7 @@ let
         cp configs/production.ini $out/etc
         echo "[DONE ]: saved enterprise-ce production.ini into $out/etc"
 
-        cp -r rhodecode/config/rcextensions $out/etc/rcextensions.tmpl
+        cp -Rf rhodecode/config/rcextensions $out/etc/rcextensions.tmpl
         echo "[DONE ]: saved enterprise-ce rcextensions into $out/etc/rcextensions.tmpl"
 
         # python based programs need to be wrapped