diff --git a/Dockerfile b/Dockerfile
index 49ba0a9..7815b5c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,6 +10,8 @@ ENV LANG fr_FR.utf8
 ENV PURGE_OLD false
 
 ENTRYPOINT ["docker-entrypoint.sh"]
+# this is the default but in case of
+STOPSIGNAL SIGTERM
 
 EXPOSE 5432
 CMD ["postgres"]