diff --git a/private/pre.rkt b/private/pre.rkt
index c40237b..565ef2f 100644
--- a/private/pre.rkt
+++ b/private/pre.rkt
@@ -73,6 +73,8 @@
            (expand-all-eh-mixin-expanders #'(pat …)))
          (eh-first-accumulate! '~maybe/empty
                                #'(~parse (expanded-pat …)
-                                         #'(clause (... ...))))
+                                         (if (attribute clause)
+                                             #'(clause (... ...))
+                                             #'())))
          #'{~optional {~and {~bind [clause-present #t]}
                             {~seq clause (... ...)}}})])))
\ No newline at end of file