diff --git a/engine/storage_mongo_datadb.go b/engine/storage_mongo_datadb.go
index 7889d7a26..dbebe3d50 100644
--- a/engine/storage_mongo_datadb.go
+++ b/engine/storage_mongo_datadb.go
@@ -24,6 +24,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"strings"
+	"time"
 
 	"github.com/cgrates/cgrates/cache"
 	"github.com/cgrates/cgrates/config"
@@ -112,7 +113,7 @@ func NewMongoStorage(host, port, db, user, pass, storageType string, cdrsIndexes
 			return nil, err
 		}
 	}
-	ms.cnter = utils.NewCounterGen(1000)
+	ms.cnter = utils.NewCounterGen(time.Now().UnixNano(), 0)
 	return
 }
 
diff --git a/engine/storage_mongo_stordb.go b/engine/storage_mongo_stordb.go
index 3791d60d7..30eb49feb 100644
--- a/engine/storage_mongo_stordb.go
+++ b/engine/storage_mongo_stordb.go
@@ -883,7 +883,7 @@ func (ms *MongoStorage) GetSMCosts(cgrid, runid, originHost, originIDPrefix stri
 
 func (ms *MongoStorage) SetCDR(cdr *CDR, allowUpdate bool) (err error) {
 	if cdr.OrderID == 0 {
-		cdr.OrderID = time.Now().UnixNano() + ms.cnter.Gen()
+		cdr.OrderID = ms.cnter.Gen()
 	}
 	session, col := ms.conn(utils.TBL_CDRS)
 	defer session.Close()
diff --git a/utils/coreutils.go b/utils/coreutils.go
index bdd1d6624..45ac42777 100644
--- a/utils/coreutils.go
+++ b/utils/coreutils.go
@@ -40,8 +40,11 @@ import (
 	"time"
 )
 
-func NewCounterGen(limit int64) *CounterGen {
-	return &CounterGen{limit: limit}
+func NewCounterGen(start, limit int64) *CounterGen {
+	return &CounterGen{
+		cnt:   start,
+		limit: limit,
+	}
 }
 
 type CounterGen struct {
@@ -53,7 +56,7 @@ func (cg *CounterGen) Gen() int64 {
 	cg.Lock()
 	defer cg.Unlock()
 	cg.cnt += 1
-	if cg.cnt > cg.limit {
+	if cg.limit > 0 && cg.cnt > cg.limit {
 		cg.cnt = 0
 	}
 	return cg.cnt