diff --git a/assemblyline_ui/api/v4/signature.py b/assemblyline_ui/api/v4/signature.py
index 5ab6bec4..b1c28cb9 100644
--- a/assemblyline_ui/api/v4/signature.py
+++ b/assemblyline_ui/api/v4/signature.py
@@ -1,19 +1,25 @@
 import re
+from hashlib import sha256
 
+from assemblyline_core.signature_client import SignatureClient
 from flask import request
-from hashlib import sha256
 
 from assemblyline.common import forge
 from assemblyline.common.isotime import now_as_iso
 from assemblyline.datastore.exceptions import VersionConflictException
 from assemblyline.odm.messages.changes import Operation
 from assemblyline.odm.models.user import ROLES
+from assemblyline.remote.datatypes.events import EventSender
 from assemblyline.remote.datatypes.hash import Hash
 from assemblyline.remote.datatypes.lock import Lock
-from assemblyline.remote.datatypes.events import EventSender
-from assemblyline_core.signature_client import SignatureClient
-from assemblyline_ui.api.base import api_login, make_api_response, make_file_response, make_subapi_blueprint
-from assemblyline_ui.config import LOGGER, STORAGE, config, CLASSIFICATION as Classification
+from assemblyline_ui.api.base import (
+    api_login,
+    make_api_response,
+    make_file_response,
+    make_subapi_blueprint,
+)
+from assemblyline_ui.config import CLASSIFICATION as Classification
+from assemblyline_ui.config import LOGGER, STORAGE, config
 from assemblyline_ui.helper.signature import append_source_status
 
 SUB_API = 'signature'
@@ -525,8 +531,10 @@ def get_signature_sources(**_):
             if 'update_interval' not in s:
                 s['update_interval'] = service['update_config']['update_interval_seconds']
         append_source_status(service)
-        out[service['name']] = dict(sources=service['update_config']['sources'],
-                                    generates_signatures=service['update_config']['generates_signatures'])
+        out[service['name']] = {
+            key: service['update_config'][key]
+            for key in ['sources', 'generates_signatures', 'update_interval_seconds', 'default_pattern']
+        }
 
     # Save the signature
     return make_api_response(out)