diff --git a/docker-compose.yml b/docker-compose.yml
index d663908c2cd1a135e4f3e42668d79a90f75c3e74..9cacacd5c0b520afbfb3339cb1ba6f6f3cc982e0 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -26,7 +26,7 @@ services:
     command: >
       bash -c "
       (
-        sleep 3 &&
+        mongostat -n=1  &&
         mongo --eval \"rs.initiate({'_id':'opensilex','members':[{'_id':0,'host':'opensilex-docker-mongodb:27017'}]})\" &&
         wait
       ) & docker-entrypoint.sh --replSet opensilex