diff --git a/README.md b/README.md
index debcdb4..e828d0c 100644
--- a/README.md
+++ b/README.md
@@ -278,7 +278,7 @@ const props = {
 // Let's say your component is called 'MyComponent'
 
 // Works with standalone PropTypes
-PropTypes.checkPropTypes(myPropTypes, props, 'prop', 'MyComponent');
+PropTypes.checkPropTypes(myPropTypes, props, 'age', 'MyComponent');
 // This will warn as follows:
 // Warning: Failed prop type: Invalid prop `age` of type `string` supplied to
 // `MyComponent`, expected `number`.