diff --git a/sql/utils/fk/gw_09_krn_ct.sql b/sql/utils/fk/gw_09_krn_ct.sql
index 12232c894..8d4e0c09a 100644
--- a/sql/utils/fk/gw_09_krn_ct.sql
+++ b/sql/utils/fk/gw_09_krn_ct.sql
@@ -9,14 +9,12 @@ SET search_path = "SCHEMA_NAME", public, pg_catalog;
 --DROP CHECK
 
 ALTER TABLE "value_state" DROP CONSTRAINT IF EXISTS "value_state_check";
-ALTER TABLE "value_yesno" DROP CONSTRAINT IF EXISTS "value_yesno_check";
 ALTER TABLE "man_addfields_cat_datatype" DROP CONSTRAINT IF EXISTS "man_addfields_cat_datatype_check";
 ALTER TABLE "man_addfields_cat_widgettype" DROP CONSTRAINT IF EXISTS "man_addfields_cat_widgettype_check";
 
 -- ADD CHECK
 
 ALTER TABLE "value_state" ADD CONSTRAINT value_state_check CHECK (id IN (0,1,2));
-ALTER TABLE "value_yesno" ADD CONSTRAINT value_yesno_check CHECK (id IN ('NO','YES'));
 
 /*
 -- PER REVISAR