diff --git a/src/Hal/Component/Ast/NodeTraverser.php b/src/Hal/Component/Ast/NodeTraverser.php
index d24a5a14..78d4a600 100644
--- a/src/Hal/Component/Ast/NodeTraverser.php
+++ b/src/Hal/Component/Ast/NodeTraverser.php
@@ -9,7 +9,18 @@
 namespace Hal\Component\Ast;
 
 if (PHP_VERSION_ID >= 70000) {
-    class_alias(Php7NodeTraverser::class, __NAMESPACE__ . '\\NodeTraverser');
+    class_alias(Php7NodeTraverser::class, __NAMESPACE__ . '\\ActualNodeTraverser');
 } else {
-    class_alias(Php5NodeTraverser::class, __NAMESPACE__ . '\\NodeTraverser');
+    class_alias(Php5NodeTraverser::class, __NAMESPACE__ . '\\ActualNodeTraverser');
+}
+
+/**
+ * Empty class to refer the good ActualNodeTraverser depending on the PHP version.
+ * This class must be hard-coded and not directly used as an alias because composer can not handle class-aliases when
+ * flag --classmap-authoritative is set.
+ * @see https://github.com/phpmetrics/PhpMetrics/issues/373
+ */
+/** @noinspection PhpUndefinedClassInspection */
+class NodeTraverser extends ActualNodeTraverser
+{
 }