diff --git a/utils/cgrevent.go b/utils/cgrevent.go
index 716342692..546793b58 100644
--- a/utils/cgrevent.go
+++ b/utils/cgrevent.go
@@ -97,7 +97,7 @@ func (ev *CGREvent) FieldAsDuration(fldName string) (d time.Duration, err error)
 
 // OptAsDuration returns an option as Duration instance
 func (ev *CGREvent) OptAsDuration(optName string) (d time.Duration, err error) {
-	iface, has := ev.Event[optName]
+	iface, has := ev.APIOpts[optName]
 	if !has {
 		err = ErrNotFound
 		return
diff --git a/utils/cgrevent_test.go b/utils/cgrevent_test.go
index c247a8b29..1d08265c4 100644
--- a/utils/cgrevent_test.go
+++ b/utils/cgrevent_test.go
@@ -510,7 +510,7 @@ func TestCGREventOptAsDurationEmpty(t *testing.T) {
 
 func TestCGREventOptAsDuration(t *testing.T) {
 	ev := &CGREvent{
-		Event: map[string]interface{}{
+		APIOpts: map[string]interface{}{
 			"testKey": 30,
 		},
 	}