diff --git a/HowtoSympa.md b/HowtoSympa.md
index dd5cbe24..950faa3c 100644
--- a/HowtoSympa.md
+++ b/HowtoSympa.md
@@ -141,12 +141,12 @@ After=syslog.target sympa.service
 Type=forking
 User=sympa
 Group=sympa
-ExecStart=!/usr/bin/spawn-fcgi -F 5 -P /run/sympa/wwsympa.pid -s /run/sympa/wwsympa.socket -u sympa -g sympa -M 0660 -G www-data -- /usr/lib/cgi-bin/sympa/wwsympa.fcgi
+ExecStart=!/usr/bin/spawn-fcgi -F 5 -P ${RUNTIME_DIRECTORY}/wwsympa.pid -s ${RUNTIME_DIRECTORY}/wwsympa.socket -u sympa -g sympa -M 0660 -G www-data -- /usr/lib/cgi-bin/sympa/wwsympa.fcgi
 Restart=always
 
 RuntimeDirectory=sympa
 RuntimeDirectoryPreserve=yes
-PIDFile=/run/sympa/wwsympa.pid
+PIDFile=%t/sympa/wwsympa.pid
 ~~~
 
 La configuration du vhost apache devient alors :