diff --git a/app/api/mobile/apis/blockchains.rb b/app/api/mobile/apis/blockchains.rb
index 3ee6e472a..dc3b60bdc 100644
--- a/app/api/mobile/apis/blockchains.rb
+++ b/app/api/mobile/apis/blockchains.rb
@@ -90,7 +90,7 @@ module Mobile
             project = Project.find_by_user_id_name(owner.id, params[:reponame])
             if project
               g = Gitlab.client # 用于通过gitlab api进行查询
-              diff_result = g.commit_diff(project.id, params[:oldHash])
+              diff_result = g.commit_diff(project.gpid, params[:oldHash])
               {status:0, diff_result:diff_result}
             else
               Rails.logger.info "project not found"