diff --git a/net/key/af_key.c b/net/key/af_key.c
index 7b1e99b..4e98193 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -3718,7 +3718,7 @@
 			    sizeof(struct seq_net_private));
 }
 
-static struct file_operations pfkey_proc_ops = {
+static const struct file_operations pfkey_proc_ops = {
 	.open	 = pfkey_seq_open,
 	.read	 = seq_read,
 	.llseek	 = seq_lseek,