diff --git a/service/test/functional/features/files/5mb.data b/service/test/functional/features/files/5mb.data
new file mode 100644
index 000000000..8c28b0e7c
Binary files /dev/null and b/service/test/functional/features/files/5mb.data differ
diff --git a/service/test/functional/features/files/upload_test_file.txt b/service/test/functional/features/files/upload_test_file.txt
deleted file mode 100644
index b7f1f8828..000000000
Binary files a/service/test/functional/features/files/upload_test_file.txt and /dev/null differ
diff --git a/service/test/functional/features/steps/attachments.py b/service/test/functional/features/steps/attachments.py
index 3cb56bdcc..a319359d4 100644
--- a/service/test/functional/features/steps/attachments.py
+++ b/service/test/functional/features/steps/attachments.py
@@ -93,10 +93,10 @@ def should_not_show_upload_error_message(context):
 @when(u'I upload a valid file')
 def upload_attachment(context):
     base_dir = "test/functional/features/files/"
-    fname = "upload_test_file.txt"
+    fname = "5mb.data"
     fill_by_css_selector(context, '#fileupload', base_dir + fname)
     attachment_list_item = wait_until_element_is_visible_by_locator(context, (By.CSS_SELECTOR, '#attachment-list-item li a'))
-    assert attachment_list_item.text == "%s (3.00 Mb)" % fname
+    assert attachment_list_item.text == "%s (5.00 Mb)" % fname
 
 
 @when(u'remove the file')