diff --git a/src/request.js b/src/request.js
index 0fae703..c897489 100644
--- a/src/request.js
+++ b/src/request.js
@@ -82,9 +82,8 @@ export default class Request extends Body {
 			signal = init.signal;
 		}
 
-		// eslint-disable-next-line no-eq-null, eqeqeq
 		if (signal != null && !isAbortSignal(signal)) {
-			throw new TypeError('Expected signal to be an instanceof AbortSignal');
+			throw new TypeError('Expected signal to be an instanceof AbortSignal or EventTarget');
 		}
 
 		this[INTERNALS] = {
diff --git a/src/utils/is.js b/src/utils/is.js
index e48165d..fa8d159 100644
--- a/src/utils/is.js
+++ b/src/utils/is.js
@@ -74,8 +74,10 @@ export function isFormData(object) {
  */
 export const isAbortSignal = object => {
 	return (
-		typeof object === 'object' &&
-		object[NAME] === 'AbortSignal'
+		typeof object === 'object' && (
+			object[NAME] === 'AbortSignal' ||
+			object[NAME] === 'EventTarget'
+		)
 	);
 };
 
diff --git a/test/main.js b/test/main.js
index 59a719d..4e7bb67 100644
--- a/test/main.js
+++ b/test/main.js
@@ -1021,7 +1021,7 @@ describe('node-fetch', () => {
 		return result;
 	});
 
-	it('should throw a TypeError if a signal is not of type AbortSignal', () => {
+	it('should throw a TypeError if a signal is not of type AbortSignal or EventTarget', () => {
 		return Promise.all([
 			expect(fetch(`${base}inspect`, {signal: {}}))
 				.to.be.eventually.rejected