diff --git a/fs/locks.c b/fs/locks.c
index 19ee18a..a8794f2 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -434,7 +434,7 @@
 	return fl->fl_file == try->fl_file;
 }
 
-static struct lock_manager_operations lease_manager_ops = {
+static const struct lock_manager_operations lease_manager_ops = {
 	.fl_break = lease_break_callback,
 	.fl_release_private = lease_release_private_callback,
 	.fl_mylease = lease_mylease_callback,