diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index ba882be..cf49de1 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -1200,7 +1200,7 @@
 	return single_open(file, pnp_seq_show, NULL);
 }
 
-static struct file_operations pnp_seq_fops = {
+static const struct file_operations pnp_seq_fops = {
 	.owner		= THIS_MODULE,
 	.open		= pnp_seq_open,
 	.read		= seq_read,