diff --git a/photo21/settings.py b/photo21/settings.py
index f5aaaa0..08250a8 100644
--- a/photo21/settings.py
+++ b/photo21/settings.py
@@ -156,6 +156,9 @@ LANGUAGES = [
     ('fr', _('French')),
 ]
 
+# Allow more fields in URL to edit large galleries
+DATA_UPLOAD_MAX_NUMBER_FIELDS = 10240
+
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/2.2/howto/static-files/