diff --git a/fdroidserver/index.py b/fdroidserver/index.py
index c788509d..500c2e9e 100644
--- a/fdroidserver/index.py
+++ b/fdroidserver/index.py
@@ -1438,7 +1438,8 @@ def get_mirror_service_urls(url):
         segments.extend([branch, folder])
         urls.append('/'.join(segments))
     elif hostname == "gitlab.com":
-        if common.get_dir_size(folder) <= common.GITLAB_COM_PAGES_MAX_SIZE:
+        git_mirror_path = os.path.join('git-mirror', folder)
+        if common.get_dir_size(git_mirror_path) <= common.GITLAB_COM_PAGES_MAX_SIZE:
             # Gitlab-like Pages segments "https://user.gitlab.io/repo/folder"
             gitlab_pages = ["https:", "", user + ".gitlab.io", repo, folder]
             urls.append('/'.join(gitlab_pages))
diff --git a/tests/index.TestCase b/tests/index.TestCase
index b04d81c0..6e63ffcf 100755
--- a/tests/index.TestCase
+++ b/tests/index.TestCase
@@ -416,8 +416,9 @@ class IndexTest(unittest.TestCase):
 
     def test_gitlab_get_mirror_service_urls(self):
         with tempfile.TemporaryDirectory() as tmpdir, TmpCwd(tmpdir):
-            os.mkdir('fdroid')
-            with Path('fdroid/placeholder').open('w') as fp:
+            git_mirror_path = Path('git-mirror/fdroid')
+            git_mirror_path.mkdir(parents=True)
+            with (git_mirror_path / 'placeholder').open('w') as fp:
                 fp.write('                                        ')
             for url in [
                 'git@gitlab.com:group/project',