diff --git a/src/Graphics/TextureCollection.cs b/src/Graphics/TextureCollection.cs
index f91f1c5..ea9c25e 100644
--- a/src/Graphics/TextureCollection.cs
+++ b/src/Graphics/TextureCollection.cs
@@ -28,7 +28,7 @@ namespace Microsoft.Xna.Framework.Graphics
 			{
 #if DEBUG
 				// XNA checks for disposed textures here! -flibit
-				if (value.IsDisposed)
+				if (value != null && value.IsDisposed)
 				{
 					throw new ObjectDisposedException(
 						value.GetType().ToString()