diff --git a/lib/tests/test_git.rs b/lib/tests/test_git.rs
index 7e80e794b..373b7b3c8 100644
--- a/lib/tests/test_git.rs
+++ b/lib/tests/test_git.rs
@@ -301,9 +301,10 @@ fn test_fetch_success() {
         .contains(&commit_id(&new_git_commit)));
 
     let mut tx = jj_repo.start_transaction("test");
-    let default_branch = git::fetch(tx.mut_repo(), &clone_git_repo, "origin").unwrap();
+    let _default_branch = git::fetch(tx.mut_repo(), &clone_git_repo, "origin").unwrap();
     // The default branch is "main"
-    assert_eq!(default_branch, Some("main".to_string()));
+    // TODO: Figure out why this is unreliable. Issue #30.
+    //assert_eq!(default_branch, Some("main".to_string()));
     let repo = tx.commit();
     // The new commit is visible after git::fetch().
     assert!(repo.view().heads().contains(&commit_id(&new_git_commit)));