diff --git a/sys/dev/drm/drm_drv.h b/sys/dev/drm/drm_drv.h
index 642cc741366..1227296eb6a 100644
--- a/sys/dev/drm/drm_drv.h
+++ b/sys/dev/drm/drm_drv.h
@@ -124,6 +124,7 @@ static void DRM(cleanup)(drm_device_t *dev);
 #if __REALLY_HAVE_AGP
 MODULE_DEPEND(DRIVER_NAME, agp, 1, 1, 1);
 #endif
+MODULE_DEPEND(DRIVER_NAME, mem, 1, 1, 1);
 #endif /* __FreeBSD__ */
 
 #ifdef __NetBSD__