diff --git a/types/async-retry/async-retry-tests.ts b/types/async-retry/async-retry-tests.ts
index 68327b66bd..20dfc62c4b 100644
--- a/types/async-retry/async-retry-tests.ts
+++ b/types/async-retry/async-retry-tests.ts
@@ -10,12 +10,12 @@ const o: Options = {
   onRetry: (e: Error) => 42
 };
 
-retry(
+const hello: Promise<string> = retry(
   bail => 'hello',
   { retries: 3 }
 );
 
-retry(
+const answer: Promise<number> = retry(
   bail => Promise.resolve(42),
   { retries: 3 }
 );
diff --git a/types/async-retry/index.d.ts b/types/async-retry/index.d.ts
index a2f65e00a4..6b50c71b63 100644
--- a/types/async-retry/index.d.ts
+++ b/types/async-retry/index.d.ts
@@ -19,7 +19,7 @@ declare namespace AsyncRetry {
 		onRetry?: (e: Error) => any;
 	}
 
-	type RetryFunction<A> = (bail: (e: Error) => A, attempt: number) => A|Promise<A>;
+	type RetryFunction<A> = (bail: (e: Error) => void, attempt: number) => A|Promise<A>;
 }
 
 export = AsyncRetry;