diff --git a/simpledisplay.d b/simpledisplay.d
index d187e58..e717644 100644
--- a/simpledisplay.d
+++ b/simpledisplay.d
@@ -2354,6 +2354,7 @@ class SimpleWindow : CapableOfHandlingNativeEvent, CapableOfBeingDrawnUpon {
 	}
 
 	private bool _fullscreen;
+	version(Windows)
 	private WINDOWPLACEMENT g_wpPrev;
 
 	/// not fully implemented but planned for a future release