diff --git a/Jenkinsfile b/Jenkinsfile
index fa418cb..373f5cc 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -40,9 +40,6 @@ pipeline {
       bat "e:\\fart.exe VersGen\\VersGen.cs 1.0.0.0 ${env.versionNumber} || EXIT /B 0"
       // checkout NuGet in file sorgente!!!
       fixNuget("${WORKSPACE}\\C-TRACK.sln")
-      // bat "e:\\nuget setapikey fe387daa-d07c-3207-877e-96c8be1be91b -source http://nexus.steamware.net/repository/nuget-group"
-      // bat "e:\\nuget sources Add -Name "Steamware Nexus" -Source http://nexus.steamware.net/repository/nuget-group"
-      // bat "e:\\nuget.exe restore ${WORKSPACE}\\C-TRACK.sln"
       }
     }
     stage('Build') {
@@ -217,8 +214,15 @@ def sendSlack(status, colorCode) {
 // funzione x fix pacchetti nuget da NOSTRO repo Nexus con proxy
 def fixNuget(solutionFile) {
   bat "e:\\nuget setapikey fe387daa-d07c-3207-877e-96c8be1be91b -source http://nexus.steamware.net/repository/nuget-group"
-  // bat "e:\\nuget sources Remove -Name \"Steamware Nexus\" "
-  // bat "e:\\nuget sources Add -Name \"Steamware Nexus\" -Source http://nexus.steamware.net/repository/nuget-group"
-  bat "e:\\nuget sources Update -Name \"Steamware Nexus\" -Source http://nexus.steamware.net/repository/nuget-group"
+  // solo la prima volta va aggiunta...
+  hasSource = bat "e:\\nuget sources list | find \"Steamware\" /C"
+  if(hasSource == 0)
+  {
+    bat "e:\\nuget sources Add -Name \"Steamware Nexus\" -Source http://nexus.steamware.net/repository/nuget-group"
+  }
+  else
+  {
+    bat "e:\\nuget sources Update -Name \"Steamware Nexus\" -Source http://nexus.steamware.net/repository/nuget-group"
+  }
   bat "e:\\nuget.exe restore ${solutionFile}"
 }
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