diff --git a/src/Avalonia.Controls/Platform/InProcessDragSource.cs b/src/Avalonia.Controls/Platform/InProcessDragSource.cs
index 6a8b79eab6..7a591cdff3 100644
--- a/src/Avalonia.Controls/Platform/InProcessDragSource.cs
+++ b/src/Avalonia.Controls/Platform/InProcessDragSource.cs
@@ -63,6 +63,7 @@ namespace Avalonia.Platform
                     using (_result.Subscribe(new AnonymousObserver<DragDropEffects>(tcs)))
                     {
                         var effect = await tcs.Task;
+                        dataTransfer.Dispose();
                         return effect;
                     }
                 }