diff --git a/crates/project/src/project_tests.rs b/crates/project/src/project_tests.rs
index f923c15229688457f03662a969f48696a43f25fb..394d89c04e3edcf5a525b1dfde6b3612524070ee 100644
--- a/crates/project/src/project_tests.rs
+++ b/crates/project/src/project_tests.rs
@@ -8296,7 +8296,10 @@ async fn test_git_worktrees_and_submodules(cx: &mut gpui::TestAppContext) {
             ".git": {
                 "worktrees": {
                     "some-worktree": {
-                        "commondir": "../..\n"
+                        "commondir": "../..\n",
+                        // For is_git_dir
+                        "HEAD": "",
+                        "config": ""
                     }
                 },
                 "modules": {