diff --git a/machines/fuuko/services/paperless.nix b/machines/fuuko/services/paperless.nix
index f0e7182..794b568 100644
--- a/machines/fuuko/services/paperless.nix
+++ b/machines/fuuko/services/paperless.nix
@@ -24,6 +24,9 @@
       PAPERLESS_TIME_ZONE = "Europe/Berlin";
       PAPERLESS_FILENAME_FORMAT = "{correspondent}/{document_type}/{created}_{title}_{doc_pk}";
       PAPERLESS_CONSUMER_RECURSIVE = true;
+      PAPERLESS_OCR_USER_ARGS = builtins.toJSON {
+        invalidate_digital_signatures = true;
+      };
     };
   };