diff --git a/backend/paperless_handler.py b/backend/paperless_handler.py
index 737693a..bf1ea8a 100644
--- a/backend/paperless_handler.py
+++ b/backend/paperless_handler.py
@@ -92,7 +92,7 @@ class PaperlessHandler:
 
                 params={
 
-                    'checksum': checksum,
+                    'checksum__iexact': checksum,
 
                     'ordering': '-created',
 
@@ -725,4 +725,4 @@ def get_paperless_handler(conn) -> Optional[PaperlessHandler]:
             
     except Exception as e:
         logger.error(f"Error creating Paperless handler: {e}")
-        return None 
\ No newline at end of file
+        return None