diff --git a/ruby/lib/gitaly_server/remote_service.rb b/ruby/lib/gitaly_server/remote_service.rb
index 39cc6e60e00a5a6cab598bb1beb10137dba6e3f6..dda0c7dcb0c142126e63c7c7ab404cb8507101bc 100644
--- a/ruby/lib/gitaly_server/remote_service.rb
+++ b/ruby/lib/gitaly_server/remote_service.rb
@@ -16,7 +16,7 @@ module GitalyServer
       repo = Gitlab::Git::Repository.from_gitaly(request.repository, call)
       remote_repo = Gitlab::Git::GitalyRemoteRepository.new(request.remote_repository, call)
 
-      result = repo.fetch_repository_as_mirror(remote_repo)
+      result = repo.fetch_repository_as_mirror(remote_repo, git_config_options: ["'transfer.hideRefs=!refs'"])
 
       Gitaly::FetchInternalRemoteResponse.new(result: result)
     end
diff --git a/ruby/lib/gitlab/git/repository.rb b/ruby/lib/gitlab/git/repository.rb
index e269ea72ca0213db6ef463a27472db0090a4d48c..295e2a1425414a7dc3d4bc3b74a9a8d8e5677c16 100644
--- a/ruby/lib/gitlab/git/repository.rb
+++ b/ruby/lib/gitlab/git/repository.rb
@@ -685,12 +685,12 @@ module Gitlab
         Gitlab::Git::Blob.find(self, sha, path) unless Gitlab::Git.blank_ref?(sha)
       end
 
-      def fetch_repository_as_mirror(repository)
+      def fetch_repository_as_mirror(repository, git_config_options: [])
         remote_name = "tmp-#{SecureRandom.hex}"
         repository = RemoteRepository.new(repository) unless repository.is_a?(RemoteRepository)
 
         add_remote(remote_name, GITALY_INTERNAL_URL, mirror_refmap: :all_refs)
-        fetch_remote(remote_name, env: repository.fetch_env)
+        fetch_remote(remote_name, env: repository.fetch_env(git_config_options: git_config_options))
       ensure
         remove_remote(remote_name)
       end