diff --git a/Bin/Resolve.php b/Bin/Resolve.php
index 5920434..507a7f5 100644
--- a/Bin/Resolve.php
+++ b/Bin/Resolve.php
@@ -1,4 +1,6 @@
-<?php declare(strict_types=1);
+<?php
+
+declare(strict_types=1);
 
 /**
  * Hoa
diff --git a/Source/Node/Node.php b/Source/Node/Node.php
index 1b1d283..01c247f 100644
--- a/Source/Node/Node.php
+++ b/Source/Node/Node.php
@@ -207,7 +207,7 @@ protected function _resolve(string $path, &$accumulator, string $id = null): ?bo
     /**
      * Resolve choices, i.e. a reach value has a “;”.
      */
-    protected function _resolveChoice(string $reach, array &$accumulator)
+    protected function _resolveChoice(string $reach, array &$accumulator): void
     {
         if (empty($accumulator)) {
             $accumulator = explode(RS, $reach);
@@ -267,7 +267,7 @@ public function reach(string $queue = null)
      * ID of the component.
      * Generic one. Should be overrided in children classes.
      */
-    public function reachId(string $id)
+    public function reachId(string $id): void
     {
         throw new Protocol\Exception(
             'The node %s has no ID support (tried to reach #%s).',