diff --git a/fs/nfs/netns.h b/fs/nfs/netns.h
index b9c7f9b1f91b11230cf3f6033fc4a86c77a94f7c..8ee1fab832686ed068468c5de8b12789af8a6371 100644
--- a/fs/nfs/netns.h
+++ b/fs/nfs/netns.h
@@ -5,6 +5,7 @@
 #ifndef __NFS_NETNS_H__
 #define __NFS_NETNS_H__
 
+#include <linux/nfs4.h>
 #include <net/net_namespace.h>
 #include <net/netns/generic.h>