diff --git a/packages/happy-dom/src/location/Location.ts b/packages/happy-dom/src/location/Location.ts
index 3b37077a7..acb18515a 100644
--- a/packages/happy-dom/src/location/Location.ts
+++ b/packages/happy-dom/src/location/Location.ts
@@ -216,8 +216,8 @@ export default class Location {
 	 *
 	 * @param url URL.
 	 */
-	public replace(url: string): void {
-		this.href = url;
+	public replace(url: string | URL): void {
+		this.href = String(url);
 	}
 
 	/**
@@ -225,8 +225,8 @@ export default class Location {
 	 *
 	 * @param url URL.
 	 */
-	public assign(url: string): void {
-		this.href = url;
+	public assign(url: string | URL): void {
+		this.href = String(url);
 	}
 
 	/**
diff --git a/packages/happy-dom/test/location/Location.test.ts b/packages/happy-dom/test/location/Location.test.ts
index 16a3d0ec2..a433faabe 100644
--- a/packages/happy-dom/test/location/Location.test.ts
+++ b/packages/happy-dom/test/location/Location.test.ts
@@ -386,6 +386,21 @@ describe('Location', () => {
 				browserFrame.page.virtualConsolePrinter.readAsString().startsWith('Error: Test error\n')
 			).toBe(true);
 		});
+
+		it('Accepts url as URL object.', () => {
+			const location = new Location(browserFrame, 'about:blank');
+			let calledURL: string | null = null;
+
+			vi.spyOn(browserFrame, 'goto').mockImplementation(
+				async (url: string): Promise<Response | null> => {
+					calledURL = url;
+					return null;
+				}
+			);
+
+			location.assign(new URL(HREF));
+			expect(calledURL).toBe(HREF);
+		});
 	});
 
 	describe('reload()', () => {