diff --git a/packages/runtime-core/__tests__/apiOptions.spec.ts b/packages/runtime-core/__tests__/apiOptions.spec.ts
index 7286c657b4b..0dda6426565 100644
--- a/packages/runtime-core/__tests__/apiOptions.spec.ts
+++ b/packages/runtime-core/__tests__/apiOptions.spec.ts
@@ -1266,15 +1266,19 @@ describe('api: options', () => {
     test('this.$options[lifecycle-name]', () => {
       const mixin = {
         mounted() {},
+        beforeUnmount() {},
         unmounted() {}
       }
       createApp({
         mixins: [mixin],
         mounted() {},
+        beforeUnmount() {},
         unmounted() {},
         created() {
           expect(this.$options.mounted).toBeInstanceOf(Array)
           expect(this.$options.mounted.length).toBe(2)
+          expect(this.$options.beforeUnmount).toBeInstanceOf(Array)
+          expect(this.$options.beforeUnmount.length).toBe(2)
           expect(this.$options.unmounted).toBeInstanceOf(Array)
           expect(this.$options.unmounted.length).toBe(2)
         },