diff --git a/typescript/base/combination/tab.ts b/typescript/base/combination/tab.ts
index a1700f265..951252fe1 100644
--- a/typescript/base/combination/tab.ts
+++ b/typescript/base/combination/tab.ts
@@ -29,5 +29,5 @@ export declare class Tab extends Widget {
 
     populate(): void;
 
-    isCardExisted(): boolean;
+    isCardExisted(cardName: string): boolean;
 }