diff --git a/packages/coding-agent/src/modes/controllers/extension-ui-controller.ts b/packages/coding-agent/src/modes/controllers/extension-ui-controller.ts
index 7367801fa..f3f911f95 100644
--- a/packages/coding-agent/src/modes/controllers/extension-ui-controller.ts
+++ b/packages/coding-agent/src/modes/controllers/extension-ui-controller.ts
@@ -253,7 +253,7 @@ export class ExtensionUiController {
 	}
 
 	setHookWidget(key: string, content: unknown): void {
-		this.ctx.statusLine.setHookStatus(key, String(content));
+		this.ctx.statusLine.setHookStatus(key, content === undefined || content === null ? undefined : String(content));
 		this.ctx.ui.requestRender();
 	}