diff --git a/README.md b/README.md
index 86eef2d..ead9126 100644
--- a/README.md
+++ b/README.md
@@ -2253,7 +2253,7 @@ console.log(undefined == null)
 
 ### _.isNull
 
-Checks if value is null or undefined.
+Checks if value is null.
 
 ```js
 // Underscore/Lodash