diff --git a/frappe/patches.txt b/frappe/patches.txt
index cfcbc1ceba..dce4187695 100644
--- a/frappe/patches.txt
+++ b/frappe/patches.txt
@@ -264,7 +264,7 @@ frappe.patches.v11_0.make_all_prepared_report_attachments_private #2019-11-26
 frappe.patches.v12_0.setup_email_linking
 frappe.patches.v12_0.fix_home_settings_for_all_users
 frappe.patches.v12_0.change_existing_dashboard_chart_filters
-frappe.patches.v12_0.set_correct_assign_value_in_docs
+frappe.patches.v12_0.set_correct_assign_value_in_docs #2020-07-13
 execute:frappe.delete_doc("Test Runner")
 execute:frappe.delete_doc_if_exists('DocType', 'Google Maps Settings')
 execute:frappe.db.set_default('desktop:home_page', 'workspace')
diff --git a/frappe/patches/v12_0/set_correct_assign_value_in_docs.py b/frappe/patches/v12_0/set_correct_assign_value_in_docs.py
index d3f97af50b..65a635c170 100644
--- a/frappe/patches/v12_0/set_correct_assign_value_in_docs.py
+++ b/frappe/patches/v12_0/set_correct_assign_value_in_docs.py
@@ -9,8 +9,9 @@ def execute():
 		FROM
 			`tabToDo`
 		WHERE
-			COALESCE(reference_type, '') != '' and
-			COALESCE(reference_name, '') != ''
+			COALESCE(reference_type, '') != '' AND
+			COALESCE(reference_name, '') != '' AND
+			status != 'Cancelled'
 		GROUP BY
 			reference_type, reference_name
 	'''