diff --git a/packages/happy-dom/src/nodes/html-input-element/HTMLInputElement.ts b/packages/happy-dom/src/nodes/html-input-element/HTMLInputElement.ts
index c21c80bc6..6de805e3b 100644
--- a/packages/happy-dom/src/nodes/html-input-element/HTMLInputElement.ts
+++ b/packages/happy-dom/src/nodes/html-input-element/HTMLInputElement.ts
@@ -596,6 +596,8 @@ export default class HTMLInputElement extends HTMLElement implements IHTMLInputE
 	 * @param value Value.
 	 */
 	public set value(value: string) {
+		// The value maybe not string, so we need to convert it to string
+		value = String(value);
 		switch (this.type) {
 			case 'hidden':
 			case 'submit':