diff --git a/platformapi/fnpsapi/store.go b/platformapi/fnpsapi/store.go
index 1afb7430..dd355cc3 100644
--- a/platformapi/fnpsapi/store.go
+++ b/platformapi/fnpsapi/store.go
@@ -26,6 +26,7 @@ type CreateStoreParam struct {
 }
 
 func (a *API) CreateStore(createStoreParam *CreateStoreParam) (err error) {
+	createStoreParam.ServiceCode = "1"
 	params := utils.Struct2FlatMap(createStoreParam)
 	_, err = a.AccessAPI("v2/chain_store", URL, params, true)
 	return err