diff --git a/modules/smithy/api_getCustomer.go b/modules/smithy/api_getCustomer.go
index 3ea10f97b..69c844f4e 100644
--- a/modules/smithy/api_getCustomer.go
+++ b/modules/smithy/api_getCustomer.go
@@ -15,6 +15,10 @@ func (this *apiComp) CustomerCheck(session comm.IUserSession, req *pb.SmithyCust
 
 func (this *apiComp) Customer(session comm.IUserSession, req *pb.SmithyCustomerReq) (code pb.ErrorCode, data proto.Message) {
 	customerCount := this.module.configure.GetGlobalConf().SmithyMaxNpc
+	if customerCount <= 0 {
+		code = pb.ErrorCode_ConfigNoFound
+		return
+	}
 	cus, err := this.module.modelTrade.getDBCustomer(session.GetUserId())
 	if err != nil {
 		if err == mongo.ErrNoDocuments {