diff --git a/sys/dev/drm2/drm_linux_list_sort.c b/sys/dev/drm2/drm_linux_list_sort.c
index ae4cd64..19c5c9e 100644
--- a/sys/dev/drm2/drm_linux_list_sort.c
+++ b/sys/dev/drm2/drm_linux_list_sort.c
@@ -42,8 +42,8 @@ drm_le_cmp(void *priv, const void *d1, const void *d2)
 	struct drm_list_sort_thunk *thunk;
 
 	thunk = priv;
-	le1 = *(struct list_head **)d1;
-	le2 = *(struct list_head **)d2;
+	le1 = *(__DECONST(struct list_head **, d1));
+	le2 = *(__DECONST(struct list_head **, d2));
 	return ((thunk->cmp)(thunk->priv, le1, le2));
 }