diff --git a/packages/runtime-core/src/vnode.ts b/packages/runtime-core/src/vnode.ts
index bed2b4f1eee..a69b34ed941 100644
--- a/packages/runtime-core/src/vnode.ts
+++ b/packages/runtime-core/src/vnode.ts
@@ -404,6 +404,9 @@ const normalizeRef = ({
   ref_key,
   ref_for
 }: VNodeProps): VNodeNormalizedRefAtom | null => {
+  if (typeof ref === 'number') {
+    ref = '' + ref
+  }
   return (
     ref != null
       ? isString(ref) || isRef(ref) || isFunction(ref)