diff --git a/src/features/feature.ts b/src/features/feature.ts
index 61cd7ed..c2f34f5 100644
--- a/src/features/feature.ts
+++ b/src/features/feature.ts
@@ -42,7 +42,9 @@ export type Replace<T, S> = S & Omit<T, keyof S>;
  * with "this" bound to what the type will eventually be processed into.
  * Intended for making lazily evaluated objects.
  */
-export type OptionsFunc<T, R = Record<string, unknown>, S = R> = () => T & Partial<R> & ThisType<S>;
+export type OptionsFunc<T, R = Record<string, unknown>, S = R> = () => T &
+    Partial<R> &
+    ThisType<T & S>;
 
 let id = 0;
 /**