diff --git a/frontend/views.py b/frontend/views.py
index e24a544..627bab1 100644
--- a/frontend/views.py
+++ b/frontend/views.py
@@ -129,10 +129,10 @@ class UpdateProjectView(ProtectedFormView, SingleObjectMixin):
         """ This form_valid handles the file upload. """
         original_file = form.files[u'file']
         original_filename = str(original_file)
-        
+        original_contentfile = ContentFile(original_file.read())
         """ Put file into temporary folder for analysis """
         target_filename = 'tmp/project_' + str(self.project_id) + '.ctt4'
-        relative_path = default_storage.save(target_filename, ContentFile(original_file.read()))
+        relative_path = default_storage.save(target_filename, original_contentfile)
         temp_sqlite = os.path.join(settings.MEDIA_ROOT, relative_path)
         
         """ Test if SQLite is a valid citavi project. """
@@ -153,7 +153,7 @@ class UpdateProjectView(ProtectedFormView, SingleObjectMixin):
                 default_storage.delete(target_filename)
 
             """ Actually store file in citavi folder """
-            relative_path = default_storage.save(target_filename, ContentFile(original_file.read()))
+            relative_path = default_storage.save(target_filename, original_contentfile)
             sqlite_path = os.path.join(settings.MEDIA_ROOT, relative_path)
 
             """ Store new original filename in Project """