diff --git a/modules/equipment/modelEquipment.go b/modules/equipment/modelEquipment.go
index 2c32c57c8..3b3bee65e 100644
--- a/modules/equipment/modelEquipment.go
+++ b/modules/equipment/modelEquipment.go
@@ -84,7 +84,7 @@ func (this *modelEquipmentComp) AddEquipments(uId string, cIds map[string]uint32
 	}
 	add = make(map[string]*pb.DB_Equipment)
 	update = make(map[string]*pb.DB_Equipment)
-	change = make([]*pb.DB_Equipment, len(equipments))
+	change = make([]*pb.DB_Equipment, 0, len(equipments))
 	for k, v := range cIds {
 		iskeep = false
 		for _, equipment := range equipments {