diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index b8ae9c9..29ad461 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -215,7 +215,7 @@
 	Opt_timeshift, Opt_err,
 };
 
-static match_table_t tokens = {
+static const match_table_t tokens = {
 	{Opt_help, "help"},
 	{Opt_uid, "uid=%u"},
 	{Opt_gid, "gid=%u"},