diff --git a/packages/test-utils/src/mount.js b/packages/test-utils/src/mount.js
index 0a0ef4128..acb787544 100644
--- a/packages/test-utils/src/mount.js
+++ b/packages/test-utils/src/mount.js
@@ -22,6 +22,10 @@ export default function mount(component, options = {}) {
 
   const _Vue = createLocalVue(options.localVue)
 
+  if (component.setup) {
+    component.render = component.setup()
+  }
+
   const mergedOptions = mergeOptions(options, config)
 
   validateOptions(mergedOptions, component)
diff --git a/test/specs/mount.spec.js b/test/specs/mount.spec.js
index d9869c512..7002212ea 100644
--- a/test/specs/mount.spec.js
+++ b/test/specs/mount.spec.js
@@ -2,6 +2,7 @@ import Vue from 'vue'
 import { compileToFunctions } from 'vue-template-compiler'
 import { mount, createLocalVue } from '@vue/test-utils'
 import Component from '~resources/components/component.vue'
+import CompositionAPI, { createElement } from '@vue/composition-api'
 import ComponentWithProps from '~resources/components/component-with-props.vue'
 import ComponentWithMixin from '~resources/components/component-with-mixin.vue'
 import ComponentAsAClass from '~resources/components/component-as-a-class.vue'
@@ -413,6 +414,18 @@ describeRunIf(process.env.TEST_ENV !== 'node', 'mount', () => {
     expect(wrapper.findAll(ChildComponent).length).to.equal(1)
   })
 
+  it('works with composition api plugin', () => {
+    const localVue = createLocalVue()
+    localVue.use(CompositionAPI)
+    const Comp = {
+      setup() {
+        return () => createElement('div', 'composition api')
+      }
+    }
+    const wrapper = mount(Comp, { localVue })
+    expect(wrapper.html()).to.equal('<div>composition api</div>')
+  })
+
   it('handles nested components with extends', () => {
     const GrandChildComponent = {
       template: '<div />',