diff --git a/t/t6300-for-each-ref.sh b/t/t6300-for-each-ref.sh
index 295d1475bd..1adb9580b1 100755
--- a/t/t6300-for-each-ref.sh
+++ b/t/t6300-for-each-ref.sh
@@ -795,4 +795,15 @@ test_expect_success ':remotename and :remoteref' '
 	)
 '
 
+test_expect_failure 'for-each-ref --ignore-case ignores case' '
+	>expect &&
+	git for-each-ref --format="%(refname)" refs/heads/MASTER >actual &&
+	test_cmp expect actual &&
+
+	echo refs/heads/master >expect &&
+	git for-each-ref --format="%(refname)" --ignore-case \
+		refs/heads/MASTER >actual &&
+	test_cmp expect actual
+'
+
 test_done