diff --git a/re_test.go b/re_test.go
index 8a53720..9fdee67 100644
--- a/re_test.go
+++ b/re_test.go
@@ -181,6 +181,7 @@ var groupTests = []struct {
 	{"(a?)a?", "b", []Match{[]Group{{0, 0}, {0, 0}}, []Group{{1, 1}, {1, 1}}}},
 	{"(a?)a?", "ab", []Match{[]Group{{0, 1}, {0, 1}}, []Group{{1, 1}, {1, 1}}, []Group{{2, 2}, {2, 2}}}},
 	{"(a?)a?", "aa", []Match{[]Group{{0, 2}, {0, 1}}, []Group{{2, 2}, {2, 2}}}},
+	{"a((b.d){3})", "abfdbhdbid", []Match{[]Group{{0, 10}, {1, 10}, {7, 10}}}},
 }
 
 func TestFindAllMatches(t *testing.T) {