diff --git a/aio/content/guide/user-input.md b/aio/content/guide/user-input.md
index 7838c9f82c..6f519bcc3c 100644
--- a/aio/content/guide/user-input.md
+++ b/aio/content/guide/user-input.md
@@ -69,7 +69,7 @@ DOM event object in the `$event` variable which this code passes as a parameter
 
 
 The properties of an `$event` object vary depending on the type of DOM event. For example,
-a mouse event includes different information than a input box editing event.
+a mouse event includes different information than an input box editing event.
 
 All [standard DOM event objects](https://developer.mozilla.org/en-US/docs/Web/API/Event)
 have a `target` property, a reference to the element that raised the event.