diff --git a/test/recursion_test.clj b/test/recursion_test.clj
index 486a897..461d0fa 100644
--- a/test/recursion_test.clj
+++ b/test/recursion_test.clj
@@ -164,7 +164,7 @@
            :in-any-order))
 
 (facts "powerset"
-  (powerset [])      => [[]]
+  (powerset [])      => [empty?]
   (powerset [1 2 4]) => (just empty?
                               (just 4 :in-any-order)
                               (just 2 :in-any-order)