diff --git a/src/documents/migrations/1053_document_pages_count.py b/src/documents/migrations/1053_document_pages_count.py
index ca0edd61b..9df760488 100644
--- a/src/documents/migrations/1053_document_pages_count.py
+++ b/src/documents/migrations/1053_document_pages_count.py
@@ -31,13 +31,13 @@ def add_number_of_pages_to_pages_count(apps, schema_editor):
         )
 
         try:
-            pdf = pikepdf.open(document.source_path)
+            pdf = pikepdf.open(doc.source_path)
 
             if pdf.pages is not None:
                 doc.pages_count = len(pdf.pages)
                 doc.save()
         except Exception as e:  # pragma: no cover
-            print(f"Error retrieving number of pages for {document.filename}: {e}")
+            print(f"Error retrieving number of pages for {doc.filename}: {e}")
 
 
 def remove_number_of_pages_to_pages_count(apps, schema_editor):