diff --git a/include/linux/if_phonet.h b/include/linux/if_phonet.h
index bbcdb0a767d8..a118ee4a8428 100644
--- a/include/linux/if_phonet.h
+++ b/include/linux/if_phonet.h
@@ -10,5 +10,5 @@
 
 #include <uapi/linux/if_phonet.h>
 
-extern struct header_ops phonet_header_ops;
+extern const struct header_ops phonet_header_ops;
 #endif
diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c
index f925753668a7..b12142e55d19 100644
--- a/net/phonet/af_phonet.c
+++ b/net/phonet/af_phonet.c
@@ -149,7 +149,7 @@ static int pn_header_parse(const struct sk_buff *skb, unsigned char *haddr)
 	return 1;
 }
 
-struct header_ops phonet_header_ops = {
+const struct header_ops phonet_header_ops = {
 	.create = pn_header_create,
 	.parse = pn_header_parse,
 };