diff --git a/src/devices/screen.h b/src/devices/screen.h
index 70bd2bd..ab3d688 100644
--- a/src/devices/screen.h
+++ b/src/devices/screen.h
@@ -11,7 +11,8 @@ WITH REGARD TO THIS SOFTWARE.
 */
 
 typedef struct UxnScreen {
-	Uint32 palette[4], *pixels, width, height, x1, y1, x2, y2;
+	int width, height, x1, y1, x2, y2;
+	Uint32 palette[4], *pixels;
 	Uint8 *fg, *bg;
 } UxnScreen;