diff --git a/source/request-as-event-emitter.ts b/source/request-as-event-emitter.ts
index 48640928e..e367a7ac0 100644
--- a/source/request-as-event-emitter.ts
+++ b/source/request-as-event-emitter.ts
@@ -303,7 +303,7 @@ export default (options: NormalizedOptions) => {
 		}
 	};
 
-	setImmediate(async () => {
+	(async () => {
 		try {
 			for (const hook of options.hooks.beforeRequest) {
 				// eslint-disable-next-line no-await-in-loop
@@ -314,7 +314,7 @@ export default (options: NormalizedOptions) => {
 		} catch (error) {
 			emitError(error);
 		}
-	});
+	})();
 
 	return emitter;
 };