diff --git a/plugins/zltx_v1/go.mod b/plugins/zltx_v1/go.mod
index b09d5e6..a853588 100644
--- a/plugins/zltx_v1/go.mod
+++ b/plugins/zltx_v1/go.mod
@@ -3,7 +3,7 @@ module plugins/zltx_v1
 go 1.22.2
 
 require (
-	gitea.cdlsxd.cn/sdk/plugin v1.0.18
+	gitea.cdlsxd.cn/sdk/plugin v1.0.19
 	github.com/go-playground/validator/v10 v10.22.0
 	github.com/hashicorp/go-plugin v1.6.1
 	github.com/stretchr/testify v1.9.0
diff --git a/plugins/zltx_v1/go.sum b/plugins/zltx_v1/go.sum
index 4ae196d..a78a174 100644
--- a/plugins/zltx_v1/go.sum
+++ b/plugins/zltx_v1/go.sum
@@ -1,5 +1,7 @@
 gitea.cdlsxd.cn/sdk/plugin v1.0.18 h1:YgVJmCSSEu8JAniXlT1rI+h0w3EEGDRWLFqjk/5xBQY=
 gitea.cdlsxd.cn/sdk/plugin v1.0.18/go.mod h1:O/bYQWg1o9g/cBq9qNA3kLIpuPt7VDZqj1bPE6s04NM=
+gitea.cdlsxd.cn/sdk/plugin v1.0.19 h1:j0Ifn3q+C7ibxSTfL1KbmnX1k/VO9e0XMDJSuPutixU=
+gitea.cdlsxd.cn/sdk/plugin v1.0.19/go.mod h1:O/bYQWg1o9g/cBq9qNA3kLIpuPt7VDZqj1bPE6s04NM=
 github.com/bufbuild/protocompile v0.4.0 h1:LbFKd2XowZvQ/kajzguUp2DC9UEIQhIq77fZZlaQsNA=
 github.com/bufbuild/protocompile v0.4.0/go.mod h1:3v93+mbWn/v3xzN+31nwkJfrEpAUwp+BagBSZWx+TP8=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
diff --git a/plugins/zltx_v1/internal/transform.go b/plugins/zltx_v1/internal/transform.go
index 07ce891..ce9b65f 100644
--- a/plugins/zltx_v1/internal/transform.go
+++ b/plugins/zltx_v1/internal/transform.go
@@ -75,7 +75,7 @@ func (c *Config) orderReq(in *proto.OrderRequest) (*direct.Order, error) {
 			accountType = 2
 		}
 	}
-	return &direct.Order{
+	d := &direct.Order{
 		Number:          in.Order.Quantity,
 		MerchantId:      c.MerchantId,
 		OutTradeNo:      in.Order.OrderNo,
@@ -84,7 +84,11 @@ func (c *Config) orderReq(in *proto.OrderRequest) (*direct.Order, error) {
 		RechargeAccount: in.Order.Account,
 		NotifyUrl:       c.NotifyUrl,
 		Version:         "1.0",
-	}, nil
+	}
+	if in.Order.Extra != nil {
+		d.ExtendParameter = string(in.Order.Extra)
+	}
+	return d, nil
 }
 
 func orderResp(request *proto.OrderRequest, resp *direct.OrderResp) *proto.OrderResponse {