diff --git a/functions.rkt b/functions.rkt
index 7a082e6..92dfada 100644
--- a/functions.rkt
+++ b/functions.rkt
@@ -18,7 +18,7 @@
   [tabulate (-> procedure-fixed-arity? (listof generic-set?) (listof list?))]
   [tabulate* (-> (listof procedure-fixed-arity?) (listof generic-set?) (listof list?))]
   [tabulate/boolean (-> procedure-fixed-arity? (listof (listof boolean?)))]
-  [tabulate*/boolean (-> (non-empty-listof procedure-fixed-arity?) (listof list?))]
+  [tabulate*/boolean (-> (non-empty-listof procedure-fixed-arity?) (listof (listof boolean?)))]
   [table->function (-> (listof (*list/c any/c any/c)) procedure?)]
   [table->function/list (-> (listof (*list/c any/c any/c)) procedure?)]
   [enumerate-boolean-tables (-> number? (stream/c (listof (*list/c boolean? boolean?))))]