diff --git a/packages/utils/use/sfc.ts b/packages/utils/use/sfc.ts
index c1fc6be35..6af3bd09f 100644
--- a/packages/utils/use/sfc.ts
+++ b/packages/utils/use/sfc.ts
@@ -57,7 +57,7 @@ function install(this: ComponentOptions<Vue>, Vue: VueConstructor) {
 
 // unify slots & scopedSlots
 export function unifySlots(context: RenderContext) {
-  const { scopedSlots } = context;
+  const { scopedSlots = {} } = context;
   const slots = context.slots();
 
   Object.keys(slots).forEach(key => {