diff --git a/src/Set/Vertices.php b/src/Set/Vertices.php
index e20af5f0..e15f7cdd 100644
--- a/src/Set/Vertices.php
+++ b/src/Set/Vertices.php
@@ -505,7 +505,7 @@ private function getVertexMatchOrNull($callbackCheck)
      *
      * @param callable|int $callback
      * @throws InvalidArgumentException
-     * @return Closure
+     * @return \Closure
      */
     private function getCallback($callback)
     {