diff --git a/lib/koans/10_map_sets.ex b/lib/koans/10_map_sets.ex
index ecbf7eb..5392985 100644
--- a/lib/koans/10_map_sets.ex
+++ b/lib/koans/10_map_sets.ex
@@ -30,7 +30,7 @@ defmodule MapSets do
     # http://stackoverflow.com/a/40408469
 
     # What do you think this answer to this assertion is?
-    # assert sorted?(@set) == ___
+    assert sorted?(@set) == ___
   end
 
   koan "Does this value exist in the map set?" do
diff --git a/test/koans/map_sets_koans_test.exs b/test/koans/map_sets_koans_test.exs
index b8f53a7..ec6f134 100644
--- a/test/koans/map_sets_koans_test.exs
+++ b/test/koans/map_sets_koans_test.exs
@@ -6,7 +6,7 @@ defmodule MapSetsTest do
     answers = [
       1,
       3,
-      false,
+      {:multiple, [false, true]},
       true,
       {:multiple, [true, false]},
       true,