diff --git a/docs/_pages/enums.md b/docs/_pages/enums.md
index 435ac01640..3f8881b404 100644
--- a/docs/_pages/enums.md
+++ b/docs/_pages/enums.md
@@ -42,3 +42,11 @@ Lastly, if you want to verify than an enum has a specific integral value, you ca
 MyEnum.One.Should().HaveValue(1);
 MyEnum.One.Should().NotHaveValue(2);
 ```
+
+```csharp
+var myEnum = (MyEnum)1;
+myEnum.Should().BeDefined();
+
+myEnum = (MyEnum)99;
+myEnum.Should().NotBeDefined();
+```
\ No newline at end of file
diff --git a/docs/_pages/releases.md b/docs/_pages/releases.md
index b656f23406..de4a23955d 100644
--- a/docs/_pages/releases.md
+++ b/docs/_pages/releases.md
@@ -10,7 +10,7 @@ sidebar:
 ## Unreleased
 
 ### What's new
-* Add `BeDefined` and `NotBeDefined` to to assert on existence of an enum value - [#1888](https://github.com/fluentassertions/fluentassertions/pull/1888)
+* Add `BeDefined` and `NotBeDefined` to assert on existence of an enum value - [#1888](https://github.com/fluentassertions/fluentassertions/pull/1888)
 
 ## 6.6.0