diff --git a/types/react-infinite-scroll-component/index.d.ts b/types/react-infinite-scroll-component/index.d.ts
index f43fc50e24..4380c2f11a 100644
--- a/types/react-infinite-scroll-component/index.d.ts
+++ b/types/react-infinite-scroll-component/index.d.ts
@@ -3,6 +3,7 @@
 // Definitions by: Stephanie Roy <https://github.com/sroy3>
 //                 Bartosz Dotryw <https://github.com/burtek>
 //                 David Kevork <https://github.com/davidkevork>
+//                 Joshua R. <https://github.com/JoshuaScript>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.8
 
@@ -30,7 +31,7 @@ declare namespace InfiniteScroll {
         /**
          * This message is shown to the user when he has seen all the records which means he's at the bottom and hasMore is false
          */
-        endMessage: React.ReactNode;
+        endMessage?: React.ReactNode;
 
         /**
          * You can send a loader component to show while the component waits for the next load of data. e.g. <h3>Loading...</h3> or any fancy loader element