--- rpl/src/instructions_o1.c	2012/10/01 11:05:05	1.60
+++ rpl/src/instructions_o1.c	2013/03/15 11:37:26	1.65
@@ -1,7 +1,7 @@
 /*
 ================================================================================
-  RPL/2 (R) version 4.1.11
-  Copyright (C) 1989-2012 Dr. BERTRAND Joël
+  RPL/2 (R) version 4.1.13
+  Copyright (C) 1989-2013 Dr. BERTRAND Joël
 
   This file is part of RPL/2.
 
@@ -4691,7 +4691,7 @@ instruction_open(struct_processus *s_eta
 					for(i = 0; i < 16; adresse[i++] = 0);
 					type_adresse = '6';
 				}
-				else
+				else if (strcmp(protocole, "UNIX") != 0)
 				{
 					liberation(s_etat_processus, s_objet_argument);