diff --git a/apier/v1/auth.go b/apier/v1/auth.go
index c7a4a1902..d0ef5e8b3 100644
--- a/apier/v1/auth.go
+++ b/apier/v1/auth.go
@@ -19,6 +19,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>
 package v1
 
 import (
+	"strconv"
 	"time"
 
 	"github.com/cgrates/cgrates/engine"
@@ -53,6 +54,9 @@ func (self *ApierV1) GetMaxUsage(usageRecord engine.UsageRecord, maxUsage *float
 	if usageRecord.SetupTime == "" {
 		usageRecord.SetupTime = utils.META_NOW
 	}
+	if usageRecord.Usage == "" {
+		usageRecord.Usage = strconv.FormatFloat(self.Config.MaxCallDuration.Seconds(), 'f', -1, 64)
+	}
 	storedCdr, err := usageRecord.AsStoredCdr()
 	if err != nil {
 		return utils.NewErrServerError(err)