diff --git a/BasiliskII/src/SDL/video_sdl.cpp b/BasiliskII/src/SDL/video_sdl.cpp
index 5435fbf7..5a3b9ded 100644
--- a/BasiliskII/src/SDL/video_sdl.cpp
+++ b/BasiliskII/src/SDL/video_sdl.cpp
@@ -2246,3 +2246,27 @@ static int redraw_func(void *arg)
 	return 0;
 }
 #endif
+
+
+/*
+ *  Record dirty area from NQD
+ */
+
+#ifdef SHEEPSHAVER
+void video_set_dirty_area(int x, int y, int w, int h)
+{
+	const VIDEO_MODE &mode = drv->mode;
+	const int screen_width = VIDEO_MODE_X;
+	const int screen_height = VIDEO_MODE_Y;
+	const int bytes_per_row = VIDEO_MODE_ROW_BYTES;
+
+#ifdef ENABLE_VOSF
+	if (use_vosf) {
+		vosf_set_dirty_area(x, y, w, h, screen_width, bytes_per_row);
+		return;
+	}
+#endif
+
+	// XXX handle dirty bounding boxes for non-VOSF modes
+}
+#endif