diff --git a/Desktop.Win/ViewModels/MainWindowViewModel.cs b/Desktop.Win/ViewModels/MainWindowViewModel.cs
index 281b436b..16dc1cec 100644
--- a/Desktop.Win/ViewModels/MainWindowViewModel.cs
+++ b/Desktop.Win/ViewModels/MainWindowViewModel.cs
@@ -264,6 +264,7 @@ namespace Remotely.Desktop.Win.ViewModels
                 if (viewer != null)
                 {
                     Viewers.Remove(viewer);
+                    viewer.Dispose();
                 }
             });
         }