diff --git a/VECTO3GUI/ViewModel/Impl/AboutViewModel.cs b/VECTO3GUI/ViewModel/Impl/AboutViewModel.cs
index 696d26a5565444b3dece72b75d34d09f85b517d4..7d707960a15009f591e038f93e4f83d0a80cec3b 100644
--- a/VECTO3GUI/ViewModel/Impl/AboutViewModel.cs
+++ b/VECTO3GUI/ViewModel/Impl/AboutViewModel.cs
@@ -70,6 +70,11 @@ namespace VECTO3GUI.ViewModel.Impl
 			Process.Start(JRCPic);
 		}
 
+		public ICommand CloseWindowCommand
+		{
+			get { return null; }
+		}
+
 		#endregion
 
 
diff --git a/VECTO3GUI/ViewModel/Impl/AbstractBusJobViewModel.cs b/VECTO3GUI/ViewModel/Impl/AbstractBusJobViewModel.cs
index 93fa7030efd641caf57f58f8ca81e5ef2c06b3a0..89fafb2aca8e53758c967bc9814ca0892d95c6a4 100644
--- a/VECTO3GUI/ViewModel/Impl/AbstractBusJobViewModel.cs
+++ b/VECTO3GUI/ViewModel/Impl/AbstractBusJobViewModel.cs
@@ -212,6 +212,11 @@ namespace VECTO3GUI.ViewModel.Impl
 				UpdateJobData();
 		}
 
+		public ICommand CloseWindowCommand
+		{
+			get { return null; }
+		}
+
 		#endregion