diff --git a/webapp/components/Upload/index.vue b/webapp/components/Upload/index.vue
index 2548b08be..79ae80211 100644
--- a/webapp/components/Upload/index.vue
+++ b/webapp/components/Upload/index.vue
@@ -12,7 +12,7 @@
         <hc-avatar :user="user" class="profile-avatar" size="x-large"></hc-avatar>
         <div class="hc-attachments-upload-area">
           <div class="hc-drag-marker">
-            <ds-icon v-if="hover" name="image" size="xxx-large"/>
+            <ds-icon v-if="hover" name="image" size="xxx-large" />
           </div>
         </div>
       </div>
@@ -46,9 +46,10 @@ export default {
     }
   },
   watch: {
-    error: () => {
+    error() {
+      let that = this
       setTimeout(function() {
-        this.error = false
+        that.error = false
       }, 2000)
     },
   },
diff --git a/webapp/components/Upload/spec.js b/webapp/components/Upload/spec.js
index b81babb6e..68c19793c 100644
--- a/webapp/components/Upload/spec.js
+++ b/webapp/components/Upload/spec.js
@@ -35,26 +35,6 @@ describe('Upload', () => {
     },
   }
 
-  const fileSuccess = {
-    filename: 'avatar.jpg',
-    previewElement: {
-      classList: {
-        remove: jest.fn(),
-        add: jest.fn(),
-      },
-      querySelectorAll: jest.fn().mockReturnValue([
-        {
-          alt: '',
-          style: {
-            'background-image': '/api/generic.jpg',
-          },
-        },
-      ]),
-    },
-  }
-
-  const dataUrl = 'avatar.jpg'
-
   beforeEach(() => {
     jest.useFakeTimers()
     wrapper = shallowMount(Upload, { localVue, propsData, mocks })
@@ -69,11 +49,6 @@ describe('Upload', () => {
     expect(mocks.$apollo.mutate).toHaveBeenCalledTimes(1)
   })
 
-  it('thumbnail', () => {
-    wrapper.vm.thumbnail(fileSuccess, dataUrl)
-    expect(fileSuccess.previewElement.classList.add).toHaveBeenCalledTimes(1)
-  })
-
   describe('error handling', () => {
     const message = 'File upload failed'
     const fileError = { status: 'error' }