diff --git a/EgwProxy.MagMan/DTO/MaterialDTO.cs b/EgwProxy.MagMan/DTO/MaterialDTO.cs
index 309fec9..1f61c94 100644
--- a/EgwProxy.MagMan/DTO/MaterialDTO.cs
+++ b/EgwProxy.MagMan/DTO/MaterialDTO.cs
@@ -15,7 +15,7 @@ namespace EgwProxy.MagMan.DTO
         /// <summary>
         /// Codice materiale (esterno)
         /// </summary>
-        public string MatCode { get; set; } = 0;
+        public string MatCode { get; set; } = "";
         /// <summary>
         /// Descrizione materiale
         /// </summary>
diff --git a/TestConsoleApp/Program.cs b/TestConsoleApp/Program.cs
index dc0700e..0b305be 100644
--- a/TestConsoleApp/Program.cs
+++ b/TestConsoleApp/Program.cs
@@ -51,7 +51,7 @@ namespace DemoApp
                 {
                     Console.WriteLine(sep);
                     Console.WriteLine($"Mat ID: {item.MatID}");
-                    Console.WriteLine($"Mat Code: {item.MatExtCode}");
+                    Console.WriteLine($"Mat Code: {item.MatCode}");
                     Console.WriteLine($"Dtmx Code: {item.MatDtmx}");
                     Console.WriteLine($"descript: {item.MatDesc}");
                     Console.WriteLine($"Dimensions W x H x L: {item.WMm:N3} x {item.HMm:N3} x {item.LMm:N3}");
@@ -74,7 +74,7 @@ namespace DemoApp
                 {
                     Console.WriteLine(sep);
                     Console.WriteLine($"Mat ID: {itemMat.MatID}");
-                    Console.WriteLine($"Mat Code: {itemMat.MatExtCode}");
+                    Console.WriteLine($"Mat Code: {itemMat.MatCode}");
                     Console.WriteLine($"Dtmx Code: {itemMat.MatDtmx}");
                     Console.WriteLine($"descript: {itemMat.MatDesc}");
                     Console.WriteLine($"Dimensions W x H x L: {itemMat.WMm:N3} x {itemMat.HMm:N3} x {itemMat.LMm:N3}");