diff --git a/docs/rules/no_unsafe_negation.md b/docs/rules/no_unsafe_negation.md
index 8bef57bd9..9ae28f988 100644
--- a/docs/rules/no_unsafe_negation.md
+++ b/docs/rules/no_unsafe_negation.md
@@ -14,6 +14,8 @@ it will be less confusing.
 
 ### Invalid:
 
+<!-- deno-fmt-ignore -->
+
 ```typescript
 if (!key in object) {}
 if (!foo instanceof Foo) {}