--- rpl/src/instructions_p7.c	2010/05/13 19:09:18	1.9
+++ rpl/src/instructions_p7.c	2010/05/22 21:45:50	1.10
@@ -1800,6 +1800,8 @@ instruction_procid(struct_processus *s_e
 			.tid = pthread_self();
 	(*(*((struct_processus_fils *) (*s_objet).objet)).thread)
 			.processus_detache = (*s_etat_processus).processus_detache;
+	(*(*((struct_processus_fils *) (*s_objet).objet)).thread)
+			.argument = NULL;
 
 	pthread_mutexattr_init(&attributs_mutex);
 	pthread_mutexattr_settype(&attributs_mutex, PTHREAD_MUTEX_RECURSIVE);