diff --git a/OpenRA.Game/Graphics/VoxelRenderer.cs b/OpenRA.Game/Graphics/VoxelRenderer.cs
index 8280effec9..1f66be1fea 100644
--- a/OpenRA.Game/Graphics/VoxelRenderer.cs
+++ b/OpenRA.Game/Graphics/VoxelRenderer.cs
@@ -315,7 +315,8 @@ namespace OpenRA.Graphics
 				v.Second();
 			}
 
-			DisableFrameBuffer(fbo);
+			if (fbo != null)
+				DisableFrameBuffer(fbo);
 		}
 
 		public Sheet AllocateSheet()