diff --git a/src/video/xbios/SDL_xbios.c b/src/video/xbios/SDL_xbios.c
index 785b3e7bc..fb064dd0f 100644
--- a/src/video/xbios/SDL_xbios.c
+++ b/src/video/xbios/SDL_xbios.c
@@ -992,6 +992,9 @@ static int XBIOS_GL_MakeCurrent(_THIS)
 		return -1;
 	}
 
+	/* OSMesa draws upside down */
+	OSMesaPixelStore(OSMESA_Y_UP, 0);
+
 	return 0;
 }