diff --git a/functions.rkt b/functions.rkt
index 8dbfb74..d382f42 100644
--- a/functions.rkt
+++ b/functions.rkt
@@ -15,8 +15,8 @@
   [struct tbf ((weights (vectorof number?)) (threshold number?))])
  ;; Functions
  (contract-out
-  [tabulate (-> procedure-fixed-arity? (listof generic-set?) (listof list?))]
-  [tabulate* (-> (listof procedure-fixed-arity?) (listof generic-set?) (listof list?))]
+  [tabulate (-> procedure? (listof generic-set?) (listof list?))]
+  [tabulate* (-> (listof procedure?) (listof generic-set?) (listof list?))]
   [tabulate/boolean (-> procedure-fixed-arity? (listof (listof boolean?)))]
   [tabulate*/boolean (-> (non-empty-listof procedure-fixed-arity?) (listof (listof boolean?)))]
   [tabulate/01 (-> procedure? (listof (listof (or/c 0 1))))]