diff --git a/frappe/patches/v11_0/remove_skip_for_doctype.py b/frappe/patches/v11_0/remove_skip_for_doctype.py
index db0a0c1691..1849cb7bcd 100644
--- a/frappe/patches/v11_0/remove_skip_for_doctype.py
+++ b/frappe/patches/v11_0/remove_skip_for_doctype.py
@@ -42,7 +42,9 @@ def execute():
 			# only specific doctypes are selected
 			# split this into multiple records and delete
 			linked_doctypes = get_linked_doctypes(user_permission.allow, True).keys()
-
+			
+			linked_doctypes = list(linked_doctypes)
+			
 			# append the doctype for which we have build the user permission
 			linked_doctypes += [user_permission.allow]
 
@@ -79,4 +81,4 @@ def execute():
 		frappe.db.sql('DELETE FROM `tabUser Permission` WHERE `name` in ({})' # nosec
 			.format(','.join(['%s'] * len(user_permissions_to_delete))),
 			tuple(user_permissions_to_delete)
-		)
\ No newline at end of file
+		)