diff --git a/content/docs/typechecking-with-proptypes.md b/content/docs/typechecking-with-proptypes.md
index c986fc010e4..9034ba9dc01 100644
--- a/content/docs/typechecking-with-proptypes.md
+++ b/content/docs/typechecking-with-proptypes.md
@@ -57,6 +57,9 @@ MyComponent.propTypes = {
   // A React element.
   optionalElement: PropTypes.element,
 
+  // A React element type (ie. MyComponent).
+  optionalElementType: PropTypes.elementType,
+  
   // You can also declare that a prop is an instance of a class. This uses
   // JS's instanceof operator.
   optionalMessage: PropTypes.instanceOf(Message),