diff --git a/TestClients/MtApi5TestClient/MqlTradeRequestViewModel.cs b/TestClients/MtApi5TestClient/MqlTradeRequestViewModel.cs
old mode 100644
new mode 100755
index f212e624..3fd28cae
--- a/TestClients/MtApi5TestClient/MqlTradeRequestViewModel.cs
+++ b/TestClients/MtApi5TestClient/MqlTradeRequestViewModel.cs
@@ -39,7 +39,7 @@ namespace MtApi5TestClient
             }
         }
 
-        public uint Order
+        public ulong Order
         {
             get { return TradeRequest.Order; }
             set