diff --git a/xorm.go b/xorm.go
index a4bded59..0a18d5e3 100644
--- a/xorm.go
+++ b/xorm.go
@@ -40,10 +40,6 @@ func NewEngine(driverName string, dataSourceName string) (*Engine, error) {
 	} else if driverName == ORACLE_OCI {
 		engine.dialect = &oracle{}
 		engine.Filters = append(engine.Filters, &QuoteFilter{})
-	} else if driverName == QL {
-		engine.dialect = &ql{}
-		engine.Filters = append(engine.Filters, &PgSeqFilter{})
-		engine.Filters = append(engine.Filters, &QuoteFilter{})
 	} else {
 		return nil, errors.New(fmt.Sprintf("Unsupported driver name: %v", driverName))
 	}