diff --git a/include/net/netns/generic.h b/include/net/netns/generic.h
index 81a31c0db3e71d96018b76191de64940fced1869..3419bf5cd15401d611373f961edb7dcb344315d1 100644
--- a/include/net/netns/generic.h
+++ b/include/net/netns/generic.h
@@ -30,7 +30,7 @@ struct net_generic {
 	void *ptr[0];
 };
 
-static inline void *net_generic(struct net *net, int id)
+static inline void *net_generic(const struct net *net, int id)
 {
 	struct net_generic *ng;
 	void *ptr;