diff --git a/guide/docs/extensions/listener.md b/guide/docs/extensions/listener.md
index c11205d9..1012ac32 100644
--- a/guide/docs/extensions/listener.md
+++ b/guide/docs/extensions/listener.md
@@ -34,9 +34,9 @@ taskRunLater(20 * 5) {
 }
 ```
 
-### Registering an existing `Listener` instance
+### Register an existing `Listener` instance
 
-There is an extension functions which registers a `Listener` instance:
+There is an extension function which registers a `Listener` instance:
 
 ```kotlin
 listenerInstance.register()