diff --git a/Stdlib/Graph/Graph.php b/Stdlib/Graph/Graph.php
index e3ccadb01..c1b81b904 100644
--- a/Stdlib/Graph/Graph.php
+++ b/Stdlib/Graph/Graph.php
@@ -403,7 +403,7 @@ class Graph
                     continue;
                 }
 
-                $diameter = \max($diameter, $this->getFloydWarshallShortestPath($node1, $node2));
+                $diameter = \max($diameter, $this->getFloydWarshallShortestPath());
             }
         }
 
diff --git a/Utils/Barcode/C128Abstract.php b/Utils/Barcode/C128Abstract.php
index 3119214a1..96914a8c8 100644
--- a/Utils/Barcode/C128Abstract.php
+++ b/Utils/Barcode/C128Abstract.php
@@ -267,9 +267,9 @@ abstract class C128Abstract
     /**
      * Validate the barcode string
      *
-     * @param string $code Barcode string
+     * @param string $barcode Barcode string
      *
-     * @return void
+     * @return bool
      *
      * @since  1.0.0
      */