diff --git a/src/DefinitionResolver.php b/src/DefinitionResolver.php
index 77527f3..33c72c2 100644
--- a/src/DefinitionResolver.php
+++ b/src/DefinitionResolver.php
@@ -168,7 +168,7 @@ class DefinitionResolver
      * @param string $fqn
      * @return Definition
      */
-    public function createDefinitionFromNode($node, string $fqn = null): Definition
+    public function createDefinitionFromNode(Node $node, string $fqn = null): Definition
     {
         $def = new Definition;
         $def->fqn = $fqn;