diff --git a/packages/vant/src/popover/Popover.tsx b/packages/vant/src/popover/Popover.tsx
index eb89b3f5b..31f63cbf4 100644
--- a/packages/vant/src/popover/Popover.tsx
+++ b/packages/vant/src/popover/Popover.tsx
@@ -63,6 +63,7 @@ export type PopoverAction = {
   color?: string;
   disabled?: boolean;
   className?: string;
+  [key: PropertyKey]: any;
 };
 
 export default defineComponent({