--- a/cubicweb/misc/migration/3.24.0_Any.py	Wed Oct 05 15:30:10 2016 +0200
+++ b/cubicweb/misc/migration/3.24.0_Any.py	Thu Oct 06 12:11:23 2016 +0200
@@ -6,3 +6,5 @@
 sql('DROP TABLE moved_entities')
 sql('ALTER TABLE entities DROP COLUMN asource')
 sql('ALTER TABLE entities DROP COLUMN extid')
+
+drop_entity_type('CWSourceSchemaConfig')