diff --git a/app/services/git_service.rb b/app/services/git_service.rb
index 58445aac0..d2889c034 100644
--- a/app/services/git_service.rb
+++ b/app/services/git_service.rb
@@ -29,7 +29,7 @@ class GitService
       https = Net::HTTP.new(uri.host, uri.port)
       https.use_ssl = root_url.start_with?('https')
       req = Net::HTTP::Post.new(uri.path, initheader = {'Content-Type' => 'text/plain;charset=utf-8'})
-      req.body = JSON.parse(params)
+      req.body = JSON.parse(params).to_s
       res = https.request(req)
       body = res.body
       logger.info("--uri_exec: .....res is #{body}")