diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index 929d09a5310ad7df79be527a45a9aa524825b7f0..319a47db218d133d36b749641b63e5fa4489014c 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -177,7 +177,7 @@ static ssize_t _nfs42_proc_copy(struct file *src,
 	if (status)
 		goto out;
 
-	if (!nfs_write_verifier_cmp(&res->write_res.verifier.verifier,
+	if (nfs_write_verifier_cmp(&res->write_res.verifier.verifier,
 				    &res->commit_res.verf->verifier)) {
 		status = -EAGAIN;
 		goto out;