diff --git a/librpc/idl/nfs4acl.idl b/librpc/idl/nfs4acl.idl
index 3d6894a604c..79e742c90e7 100644
--- a/librpc/idl/nfs4acl.idl
+++ b/librpc/idl/nfs4acl.idl
@@ -13,7 +13,7 @@ import "misc.idl", "security.idl";
 ]
 interface nfs4acl_interface
 {
-	const char *NFS4ACL_NDR_XATTR_NAME = "system.nfs4acl";
+	const char *NFS4ACL_NDR_XATTR_NAME = "security.nfs4acl_ndr";
 
 	const char *NFS4ACL_XATTR_OWNER_WHO	 = "OWNER@";
 	const char *NFS4ACL_XATTR_GROUP_WHO	 = "GROUP@";