diff --git a/src/Avalonia.Visuals/Rendering/DeferredRenderer.cs b/src/Avalonia.Visuals/Rendering/DeferredRenderer.cs
index d2852786c6..b48efaa34e 100644
--- a/src/Avalonia.Visuals/Rendering/DeferredRenderer.cs
+++ b/src/Avalonia.Visuals/Rendering/DeferredRenderer.cs
@@ -85,6 +85,7 @@ namespace Avalonia.Rendering
             RenderTarget = renderTarget;
             _sceneBuilder = sceneBuilder ?? new SceneBuilder();
             Layers = new RenderLayers();
+            _lock = new ManagedDeferredRendererLock();
         }
 
         /// <inheritdoc/>