diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h
index 8017846..2fcc30d 100644
--- a/fs/nfs/delegation.h
+++ b/fs/nfs/delegation.h
@@ -38,6 +38,7 @@
 /* NFSv4 delegation-related procedures */
 int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid);
 int nfs4_open_delegation_recall(struct dentry *dentry, struct nfs4_state *state);
+int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl);
 
 static inline int nfs_have_delegation(struct inode *inode, int flags)
 {