diff --git a/src/newgal/drm/drmvideo.h b/src/newgal/drm/drmvideo.h
index 41aae52d..811760f4 100644
--- a/src/newgal/drm/drmvideo.h
+++ b/src/newgal/drm/drmvideo.h
@@ -80,6 +80,7 @@ typedef struct GAL_PrivateVideoData {
     char*           dev_name;
     char*           ex_driver;
     int             dev_fd;
+    drm_magic_t     auth_magic;
 
     /* capabilities */
     uint32_t        cap_cursor_width;