diff --git a/backup_archive_fnct_FRA.sh b/backup_archive_fnct_FRA.sh
index 3c9ca4b..a9aeb0a 100644
--- a/backup_archive_fnct_FRA.sh
+++ b/backup_archive_fnct_FRA.sh
@@ -7,7 +7,7 @@
 #
 # Vérification du paramètre d'entrée
 ORACLE_SID=$1
-[ "${ORACLE_SID}" ] || echo syntax : $0 ORACLE_SID && exit 2;
+[ "${ORACLE_SID}" ] || (echo syntax : $0 ORACLE_SID && exit 2);
 
 # Variables d'initialisation 
 script_dir=/home/oracle/scripts