diff --git a/unfinished/regexp2/regexp2-tests.factor b/unfinished/regexp2/regexp2-tests.factor
index 2bb194f012..88bbc5f56c 100644
--- a/unfinished/regexp2/regexp2-tests.factor
+++ b/unfinished/regexp2/regexp2-tests.factor
@@ -222,6 +222,8 @@ IN: regexp2-tests
     <regexp> drop
 ] unit-test
 
+! Comment
+[ t ] [ "ac" "a(?#boo)c" <regexp> matches? ] unit-test