diff --git a/par-core/src/main/resources/db/migration/V15__risk_rules_site_id.sql b/par-core/src/main/resources/db/migration/V15__risk_rules_site_id.sql
index bf14e9e..ef45993 100644
--- a/par-core/src/main/resources/db/migration/V15__risk_rules_site_id.sql
+++ b/par-core/src/main/resources/db/migration/V15__risk_rules_site_id.sql
@@ -1,11 +1,11 @@
 SET @exist := (SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema = DATABASE() AND table_name = 'risk_rules' AND column_name = 'site_id');
-SET @sqlstmt := IF(@exist = 0, 'ALTER TABLE risk_rules ADD COLUMN site_id VARCHAR(255) DEFAULT NULL AFTER site_type', 'SELECT ''Column site_id already exists''');
+SET @sqlstmt := IF(@exist = 0, 'ALTER TABLE risk_rules ADD COLUMN site_id VARCHAR(255) DEFAULT NULL AFTER site_type', 'DO 0');
 PREPARE stmt FROM @sqlstmt;
 EXECUTE stmt;
 DEALLOCATE PREPARE stmt;
 
 SET @idx_exist := (SELECT COUNT(*) FROM INFORMATION_SCHEMA.STATISTICS WHERE table_schema = DATABASE() AND table_name = 'risk_rules' AND index_name = 'idx_risk_rules_site_id');
-SET @idx_sqlstmt := IF(@idx_exist = 0, 'CREATE INDEX idx_risk_rules_site_id ON risk_rules(site_id)', 'SELECT ''Index idx_risk_rules_site_id already exists''');
+SET @idx_sqlstmt := IF(@idx_exist = 0, 'CREATE INDEX idx_risk_rules_site_id ON risk_rules(site_id)', 'DO 0');
 PREPARE idx_stmt FROM @idx_sqlstmt;
 EXECUTE idx_stmt;
 DEALLOCATE PREPARE idx_stmt;