diff --git a/source3/librpc/idl/smbXsrv.idl b/source3/librpc/idl/smbXsrv.idl
index 4367d724075..77959cebc6b 100644
--- a/source3/librpc/idl/smbXsrv.idl
+++ b/source3/librpc/idl/smbXsrv.idl
@@ -193,6 +193,7 @@ interface smbXsrv
 		[ignore] user_struct			*compat;
 		[ignore] smbXsrv_tcon_table		*tcon_table;
 		[ignore] smbXsrv_preauth		*preauth;
+		boolean8				encryption_desired;
 	} smbXsrv_session;
 
 	typedef union {
@@ -287,6 +288,7 @@ interface smbXsrv
 		NTSTATUS				status;
 		NTTIME					idle_time;
 		[ignore] connection_struct		*compat;
+		boolean8				encryption_desired;
 	} smbXsrv_tcon;
 
 	typedef union {