diff --git a/cron_osm.sh b/cron_osm.sh
index f54ad62..1f76fb6 100755
--- a/cron_osm.sh
+++ b/cron_osm.sh
@@ -24,7 +24,7 @@ then
     rm ${lockfile}
   else
     echo `date`" : Process deja en cours" >> $SCRIPT_DIR/cron.log
-    exit 0
+    exit 1
   fi
 fi