diff --git a/changedetectionio/__init__.py b/changedetectionio/__init__.py
index 2b10ace3..c440a4ce 100644
--- a/changedetectionio/__init__.py
+++ b/changedetectionio/__init__.py
@@ -619,6 +619,10 @@ def changedetection_app(config=None, datastore_o=None):
             datastore.data['watching'][uuid].update(form.data)
             datastore.data['watching'][uuid].update(extra_update_obj)
 
+            # Fix the diff filters being changed in the creation of form object
+            datastore.data['watching'][uuid]['trigger_on_add'] = default['trigger_on_add']
+            datastore.data['watching'][uuid]['trigger_on_del'] = default['trigger_on_del']
+
             flash("Updated watch.")
 
             # Re #286 - We wait for syncing new data to disk in another thread every 60 seconds