diff --git a/arkoala-arkts/arkui/src/ComponentBase.ts b/arkoala-arkts/arkui/src/ComponentBase.ts
index 2555d974f45c40e428c47b2c660c8604a824ae2a..dd85d1efe4d1086c62cf80b1b3a6d201e5e2acdc 100644
--- a/arkoala-arkts/arkui/src/ComponentBase.ts
+++ b/arkoala-arkts/arkui/src/ComponentBase.ts
@@ -22,7 +22,7 @@ import { unsafeCast } from "@koalaui/common"
 export class ComponentBase implements UICommonBase {
     protected peer?: PeerNode
     protected isFirstBuild: boolean = true
-    setPeer(peer: PeerNode) {
+    setPeer(peer: PeerNode | undefined) {
         this.peer = peer
     }
     protected checkPriority(name: string): boolean {