diff --git a/spec/remote.spec.js b/spec/remote.spec.js
index 101707cf..e614e16a 100644
--- a/spec/remote.spec.js
+++ b/spec/remote.spec.js
@@ -346,5 +346,12 @@ describe('Git Remotes', function() {
 		);
 	});
 
+	it('does not fetch if one arg is not branch ref', function() {
+		expectTreeAsync(
+			'git clone; git fakeTeamwork 2; git fetch origin master~1',
+			'{"branches":{"master":{"target":"C1","id":"master","remoteTrackingBranchID":"o/master"},"o/master":{"target":"C1","id":"o/master","remoteTrackingBranchID":null}},"commits":{"C0":{"parents":[],"id":"C0","rootCommit":true},"C1":{"parents":["C0"],"id":"C1"}},"tags":{},"HEAD":{"target":"master","id":"HEAD"},"originTree":{"branches":{"master":{"target":"C3","id":"master","remoteTrackingBranchID":null}},"commits":{"C0":{"parents":[],"id":"C0","rootCommit":true},"C1":{"parents":["C0"],"id":"C1"},"C2":{"parents":["C1"],"id":"C2"},"C3":{"parents":["C2"],"id":"C3"}},"tags":{},"HEAD":{"target":"master","id":"HEAD"}}}'
+		);
+	});
+
 });