diff --git a/HowtoPuma.md b/HowtoPuma.md
index bbe3bf94..bb68e090 100644
--- a/HowtoPuma.md
+++ b/HowtoPuma.md
@@ -38,6 +38,7 @@ WorkingDirectory=%h/www
 UMask=0027
 PIDFile=%h/ruby.pid
 ExecStartPre=/bin/mkdir -m 0750 %h/run
+Environment="MALLOC_ARENA_MAX=2"  # workaround pour réduire les fuites mémoire
 ExecStart=/usr/local/bin/puma --bind unix://%h/run/puma.sock?umask=0007 --pidfile %h/run/puma.pid --dir %h/www --config /etc/puma/%u.rb
 ExecReload=/bin/kill -USR2 $MAINPID
 KillMode=process