diff --git a/src/koans/maps.clj b/src/koans/maps.clj
index bbaeeab..a26a6fb 100644
--- a/src/koans/maps.clj
+++ b/src/koans/maps.clj
@@ -1,6 +1,6 @@
 (meditations
   "There are two ways to create maps"
-  (= {} (hash-map))
+  (= __ (hash-map))
 
   "Maps in clojure associate keys with values"
   (= __ (count (hash-map)))
diff --git a/src/koans/sets.clj b/src/koans/sets.clj
index 60a6575..e27416b 100644
--- a/src/koans/sets.clj
+++ b/src/koans/sets.clj
@@ -1,6 +1,6 @@
 (meditations
   "You can create a set in two ways"
-  (= #{} (set nil))
+  (= #{} (set __))
 
   "They are another important data structure in clojure"
   (= __ (count #{1 2 3}))
diff --git a/src/path_to_answer_sheet.clj b/src/path_to_answer_sheet.clj
index 2bf71dd..66a2ea3 100644
--- a/src/path_to_answer_sheet.clj
+++ b/src/path_to_answer_sheet.clj
@@ -37,13 +37,15 @@
                     [:butter :and]
                     3]}
 
-   "sets" {"__" [3
+   "sets" {"__" [nil
+                 3
                  #{1 2 3 4 5}
                  #{1 2 3 4 5}
                  #{2 3}
                  #{1 4}]}
 
-   "maps" {"__" [0
+   "maps" {"__" [{}
+                 0
                  1
                  2
                  2
@@ -69,7 +71,7 @@
 
    "conditionals" {"__" [:a
                          []
-                         nil 
+                         nil
                          :glory
                          4 6 :your_road
                          ''doom 0