diff --git a/pkgs/applications/version-management/gitlab/gitaly/default.nix b/pkgs/applications/version-management/gitlab/gitaly/default.nix
index 476ceee30d0..0ea3ce0f779 100644
--- a/pkgs/applications/version-management/gitlab/gitaly/default.nix
+++ b/pkgs/applications/version-management/gitlab/gitaly/default.nix
@@ -27,12 +27,12 @@ in buildGoPackage rec {
 
   postInstall = ''
     mkdir -p $ruby
-    cp -rv $src/ruby/{bin,lib,git-hooks,vendor} $ruby
+    cp -rv $src/ruby/{bin,lib,git-hooks,gitlab-shell} $ruby
 
     # gitlab-shell will try to read its config relative to the source
     # code by default which doesn't work in nixos because it's a
     # read-only filesystem
-    substituteInPlace $ruby/vendor/gitlab-shell/lib/gitlab_config.rb --replace \
+    substituteInPlace $ruby/gitlab-shell/lib/gitlab_config.rb --replace \
        "File.join(ROOT_PATH, 'config.yml')" \
        "'/run/gitlab/shell-config.yml'"
   '';