diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h
index d8b16c2..5fbf3bb 100644
--- a/fs/nfsd/netns.h
+++ b/fs/nfsd/netns.h
@@ -92,7 +92,7 @@
 
 	struct file *rec_file;
 	bool in_grace;
-	struct nfsd4_client_tracking_ops *client_tracking_ops;
+	const struct nfsd4_client_tracking_ops *client_tracking_ops;
 
 	time_t nfsd4_lease;
 	time_t nfsd4_grace;