diff --git a/mayan/apps/ocr/migrations/0003_auto_20150617_0401.py b/mayan/apps/ocr/migrations/0003_auto_20150617_0401.py
index 3a69ebd78e..69cbe288fd 100644
--- a/mayan/apps/ocr/migrations/0003_auto_20150617_0401.py
+++ b/mayan/apps/ocr/migrations/0003_auto_20150617_0401.py
@@ -9,7 +9,7 @@ def move_content_from_documents_to_ocr_app(apps, schema_editor):
 
     for document_page in DocumentPage.objects.all():
         document_page_content = DocumentPageContent(
-            document_page=document_page, content=document_page.content_old
+            document_page=document_page, content=document_page.content_old or ''
         )
         document_page_content.save()