diff --git a/backup_archive_fnct_FRA.sh b/backup_archive_fnct_FRA.sh
index 71239aa..3b7c322 100644
--- a/backup_archive_fnct_FRA.sh
+++ b/backup_archive_fnct_FRA.sh
@@ -33,7 +33,7 @@ EOF
 
 pct_fra_used=$(echo ${fra_usage} | egrep -o "[0-9]*")
 
-if [ "${pct_fra_used}" gt 65 ]
+if [ "${pct_fra_used}" -gt 65 ]
 then
     echo ${pct_fra_used} : backup des archivelog necessaire
 else