diff --git a/packages/vant/src/config-provider/types.ts b/packages/vant/src/config-provider/types.ts
index 896bdc79a..639ac12a2 100644
--- a/packages/vant/src/config-provider/types.ts
+++ b/packages/vant/src/config-provider/types.ts
@@ -78,6 +78,7 @@ export type ConfigProviderThemeVars = BaseThemeVars &
   import('../action-sheet').ActionSheetThemeVars &
   import('../address-edit').AddressEditThemeVars &
   import('../address-list').AddressListThemeVars &
+  import('../back-top').BackTopThemeVars &
   import('../badge').BadgeThemeVars &
   import('../barrage').BarrageThemeVars &
   import('../button').ButtonThemeVars &