diff --git a/Thermo.Active.Core/ThreadsFunctions.cs b/Thermo.Active.Core/ThreadsFunctions.cs
index be559e9c..f9f6e27d 100644
--- a/Thermo.Active.Core/ThreadsFunctions.cs
+++ b/Thermo.Active.Core/ThreadsFunctions.cs
@@ -352,8 +352,8 @@ public static class ThreadsFunctions
                         // if requested --> give ack!
                         ncAdapter.ManageFlirStrobe();
                         // requesto photo from library
-                        ncAdapter.lastThermoImage = TCCom.takePicture();
-                        done = !string.IsNullOrEmpty(ncAdapter.lastThermoImage);
+                        NcAdapter.lastThermoImage = TCCom.takePicture();
+                        done = !string.IsNullOrEmpty(NcAdapter.lastThermoImage);
                         if (done)
                         {
                             // init
diff --git a/Thermo.Active.NC/NcAdapter.cs b/Thermo.Active.NC/NcAdapter.cs
index 49034447..cf4083b9 100644
--- a/Thermo.Active.NC/NcAdapter.cs
+++ b/Thermo.Active.NC/NcAdapter.cs
@@ -117,7 +117,7 @@ namespace Thermo.Active.NC
         /// <summary>
         /// ultima immagine scattata dalla thermocam x salvataggio in PROD
         /// </summary>
-        public string lastThermoImage = "_last";
+        public static string lastThermoImage = "_last";
 
         /// <summary>
         /// Avvio prod lotto