diff --git a/README.md b/README.md
index 348c0f5..ac64fbc 100644
--- a/README.md
+++ b/README.md
@@ -76,8 +76,9 @@ same binary representation.
 
 This means:
 
-- All lists are encoded the same
-- All sets are encoded the same
+- All list types are encoded the same
+- All set types are encoded the same
+- All map types are encoded the same
 - All integer numbers are encoded the same
 - All floating-point numbers are encoded the same
 
@@ -112,4 +113,4 @@ alternative impl in a separate namespace, with comparative benchmarks attached.
 Copyright © 2016 Luke VanderHart
 
 Distributed under the Eclipse Public License either version 1.0 or (at
-your option) any later version.
\ No newline at end of file
+your option) any later version.