diff --git a/types/index.d.ts b/types/index.d.ts
index 4396c60baa8..3cd944d0d8f 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -439,7 +439,7 @@ declare module 'mongoose' {
 
   type Mutable<T> = {
     -readonly [K in keyof T]: T[K];
-  }
+  };
 
   type _UpdateQuery<TSchema> = {
     /** @see https://docs.mongodb.com/manual/reference/operator/update-field/ */