diff --git a/fs/crypto/keyring.c b/fs/crypto/keyring.c
index 6681a71625f0..82fcc5683649 100644
--- a/fs/crypto/keyring.c
+++ b/fs/crypto/keyring.c
@@ -22,6 +22,7 @@
 #include <crypto/skcipher.h>
 #include <linux/key-type.h>
 #include <linux/random.h>
+#include <linux/once.h>
 #include <linux/seq_file.h>
 
 #include "fscrypt_private.h"