diff --git a/calexium_lib/web/CXM_making_a_web_site.anubis b/calexium_lib/web/CXM_making_a_web_site.anubis
index 347cc98..306b8e7 100644
--- a/calexium_lib/web/CXM_making_a_web_site.anubis
+++ b/calexium_lib/web/CXM_making_a_web_site.anubis
@@ -2924,7 +2924,7 @@ define URL_or_JavaScript
        with n = new_count, 
              fn_name = "pfu_" + if mb_id is
                                 {
-                                  failure then form_name + n,
+                                  failure then form_name + "_" + n,
                                   success(id) then id,
                                 },
          javascript(
--
libgit2 0.21.4