diff --git a/conf/systemd.service b/conf/systemd.service
index cfb9b2b..1549372 100755
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -7,7 +7,7 @@ Type=simple
 User=__APP__
 Group=__APP__
 WorkingDirectory=__FINALPATH__
-ExecStart=__NODEJS_PATH__/node __FINALPATH__/tiddlywiki monwiki --listen port=__port__ authenticated-user-header=basic
+ExecStart=__NODEJS_PATH__/node __FINALPATH__/tiddlywiki monwiki --listen port=__PORT__ authenticated-user-header=basic
 Restart=always
 Environment=PATH=/usr/bin:/usr/local/bin:__NODEJS_PATH__
 Environment=NODE_ENV=production
diff --git a/scripts/install b/scripts/install
index e57ca19..afffd59 100755
--- a/scripts/install
+++ b/scripts/install
@@ -107,7 +107,6 @@ popd
 ynh_script_progression --message="Configuring a systemd service..." --weight=1
 
 ynh_replace_string --match_string="__NODEJS_PATH__" --replace_string="$nodejs_path" --target_file="../conf/systemd.service"
-ynh_replace_string --match_string="__port__" --replace_string="$port" --target_file="../conf/systemd.service"
 ynh_add_systemd_config
 
 #=================================================