diff --git a/test/Formulate.test.js b/test/Formulate.test.js
index f5870d3..6d5e898 100644
--- a/test/Formulate.test.js
+++ b/test/Formulate.test.js
@@ -1,4 +1,4 @@
-import Formulate from '@/Formulate'
+import Formulate from '@/Formulate.js'
 
 test('can extend simple object', () => {
   let a = {
diff --git a/test/FormulateForm.test.js b/test/FormulateForm.test.js
index 5fad1cc..4cf0b73 100644
--- a/test/FormulateForm.test.js
+++ b/test/FormulateForm.test.js
@@ -1,7 +1,7 @@
 import Vue from 'vue'
 import { mount, shallowMount } from '@vue/test-utils'
 import flushPromises from 'flush-promises'
-import Formulate from '@/Formulate'
+import Formulate from '@/Formulate.js'
 import FormulateForm from '../src/FormulateForm.vue'
 import FormulateInput from '../src/FormulateInput.vue'
 
diff --git a/test/FormulateInputBox.test.js b/test/FormulateInputBox.test.js
index 09af98d..e9abbfa 100644
--- a/test/FormulateInputBox.test.js
+++ b/test/FormulateInputBox.test.js
@@ -1,6 +1,6 @@
 import Vue from 'vue'
 import { mount } from '@vue/test-utils'
-import Formulate from '@/Formulate'
+import Formulate from '@/Formulate.js'
 import FormulateInput from '../src/FormulateInput.vue'
 import FormulateInputBox from '../src/inputs/FormulateInputBox.vue'
 import FormulateInputGroup from '../src/FormulateInputGroup.vue'
diff --git a/test/FormulateInputText.test.js b/test/FormulateInputText.test.js
index 12e4947..b0cc50c 100644
--- a/test/FormulateInputText.test.js
+++ b/test/FormulateInputText.test.js
@@ -1,6 +1,6 @@
 import Vue from 'vue'
 import { mount } from '@vue/test-utils'
-import Formulate from '@/Formulate'
+import Formulate from '@/Formulate.js'
 import FormulateInput from '../src/FormulateInput.vue'
 import FormulateInputText from '../src/inputs/FormulateInputText.vue'
 import { doesNotReject } from 'assert';