diff --git a/t/t6120-describe.sh b/t/t6120-describe.sh
index ba9ea60d10..cc24477668 100755
--- a/t/t6120-describe.sh
+++ b/t/t6120-describe.sh
@@ -98,4 +98,7 @@ check_describe B --tags HEAD^^2^
 
 check_describe B-0-* --long HEAD^^2^
 
+test_expect_success 'pack tag refs' 'git pack-refs'
+check_describe A-* HEAD
+
 test_done