diff --git a/conf/systemd.service b/conf/systemd.service
index f6a38cb..57b4d84 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -9,9 +9,12 @@ User=__APP__
 Group=__APP__
 WorkingDirectory=__FINALPATH__
 #PIDFile=/path/to/nodebb/pidfile
-Environment=NODE_ENV=production
+Environment="NODE_ENV=production"
+Environment="__YNH_NODE_LOAD_PATH__"
+
 #ExecStart=__NODE__/node loader.js --no-daemon --no-silent
-ExecStart=__YNH_NPM__ start
+ExecStart= start
+
 Restart=always
 
 [Install]
diff --git a/scripts/_common.sh b/scripts/_common.sh
index e2f042b..1382e95 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -22,15 +22,15 @@ nodejs_version=14
 #=================================================
 
 # Execute a command as another user
-# usage: exec_as USER COMMAND [ARG ...]
-exec_as() {
-  local user=$1
+# usage: ynh_exec_as USER COMMAND [ARG ...]
+ynh_exec_as() {
+  local USER=$1
   shift 1
 
-  if [[ $user = $(whoami) ]]; then
+  if [[ $USER = $(whoami) ]]; then
     eval "$@"
   else
-    sudo -u "$user" "$@"
+    sudo -u "$USER" "$@"
   fi
 }
 
diff --git a/scripts/install b/scripts/install
index aaa863b..4297d46 100644
--- a/scripts/install
+++ b/scripts/install
@@ -124,10 +124,10 @@ ynh_add_nginx_config
 #=================================================
 ynh_script_progression --message="Configuring a systemd service..." --time --weight=1
 
-ynh_replace_string --match_string="__ENV_PATH__" --replace_string="$PATH" --target_file="../conf/systemd.service"
-ynh_replace_string --match_string="__YNH_NPM__" --replace_string="$ynh_npm" --target_file="../conf/systemd.service"
+#ynh_replace_string --match_string="__ENV_PATH__" --replace_string="$PATH" --target_file="../conf/systemd.service"
+#ynh_replace_string --match_string="__YNH_NPM__" --replace_string="$ynh_npm" --target_file="../conf/systemd.service"
 
-ynh_add_systemd_config
+ynh_add_systemd_config --others_var="ynh_node_load_PATH"
 
 #=================================================
 # CONFIGURE SERVER.JS	
@@ -142,9 +142,12 @@ ynh_add_config --template="../conf/config.json" --destination="$final_path/confi
 chown -R $app:$app $final_path
 
 pushd $final_path
-	exec_as $app ./nodebb setup -l > $install_log
-	exec_as $app npm install nodebb-plugin-dbsearch --save-prod
-	exec_as $app ./nodebb build -l
+	ynh_exec_as $app env $ynh_node_load_PATH ./nodebb setup -l > $install_log
+	ynh_exec_as  $app env $ynh_node_load_PATH npm install nodebb-plugin-dbsearch --save-prod
+	ynh_exec_as  $app env $ynh_node_load_PATH ./nodebb build -l
+	#exec_as $app ./nodebb setup -l > $install_log
+	#exec_as $app npm install nodebb-plugin-dbsearch --save-prod
+	#exec_as $app ./nodebb build -l
 popd