diff --git a/mar/womb/invite.hoon b/mar/womb/invite.hoon
index 0265b81b2..e62735a66 100644
--- a/mar/womb/invite.hoon
+++ b/mar/womb/invite.hoon
@@ -15,16 +15,18 @@
   |%
   ++  noun  {cord reference invite}                     ::  clam from %noun
   ++  json
-    %+  corl  need
+    |=  jon/^json  ^-  {cord reference invite}
+    %-  need
+    %.  jon 
     =>  jo
-    =+  ^=  mail
-        ;~  simu
-          ;~(pfix (plus ;~(less pat next)) pat)
-          (cook crip (star ;~(less ace prn)))
-        ==
+    =/  mail
+      ;~  simu
+        ;~(pfix (plus ;~(less pat next)) pat)
+        (cook crip (star ;~(less ace prn)))
+      ==
     %-  ot  :~
       tid+so
-      ref+(mu (su (pick ;~(pfix (jest '0v') viz:ag) mail)))
+      ref+(mu (su (pick ;~(pfix sig fed:ag) mail)))
       inv+(ot who+(su mail) pla+ni sta+ni wel+(ot intro+sa hello+sa ~) ~)
     ==
   --