diff --git a/api/controller/triggers.go b/api/controller/triggers.go
index 4c6ec7075..de97e8d3e 100644
--- a/api/controller/triggers.go
+++ b/api/controller/triggers.go
@@ -35,7 +35,7 @@ func CreateTrigger(dataBase moira.Database, trigger *dto.TriggerModel, timeSerie
 			return nil, api.ErrorInternalServer(err)
 		}
 		if exists {
-			return nil, api.ErrorInvalidRequest(fmt.Errorf("trigger with this ID already exists"))
+			return nil, api.ErrorInvalidRequest(fmt.Errorf("trigger with this ID (%s) already exists", trigger.ID))
 		}
 	}
 	resp, err := saveTrigger(dataBase, trigger.ToMoiraTrigger(), trigger.ID, timeSeriesNames)
diff --git a/api/controller/triggers_test.go b/api/controller/triggers_test.go
index 30b174d54..a70ca9d35 100644
--- a/api/controller/triggers_test.go
+++ b/api/controller/triggers_test.go
@@ -73,11 +73,12 @@ func TestCreateTrigger(t *testing.T) {
 	})
 
 	Convey("Trigger already exists", t, func() {
-		triggerModel := dto.TriggerModel{ID: uuid.Must(uuid.NewV4()).String()}
+		triggerId := uuid.Must(uuid.NewV4()).String()
+		triggerModel := dto.TriggerModel{ID: triggerId}
 		trigger := triggerModel.ToMoiraTrigger()
 		dataBase.EXPECT().GetTrigger(triggerModel.ID).Return(*trigger, nil)
 		resp, err := CreateTrigger(dataBase, &triggerModel, make(map[string]bool))
-		So(err, ShouldResemble, api.ErrorInvalidRequest(fmt.Errorf("trigger with this ID already exists")))
+		So(err, ShouldResemble, api.ErrorInvalidRequest(fmt.Errorf("trigger with this ID (%s) already exists", triggerId)))
 		So(resp, ShouldBeNil)
 	})