diff --git a/Stdlib/Graph/Graph.php b/Stdlib/Graph/Graph.php
index c1b81b904..0543c8795 100644
--- a/Stdlib/Graph/Graph.php
+++ b/Stdlib/Graph/Graph.php
@@ -403,10 +403,12 @@ class Graph
                     continue;
                 }
 
+                /** @var int $diameter */
                 $diameter = \max($diameter, $this->getFloydWarshallShortestPath());
             }
         }
 
+        /** @var int $diameter */
         return $diameter;
     }
 
diff --git a/Utils/Barcode/HIBCC.php b/Utils/Barcode/HIBCC.php
index baf9ee9a5..2c6d465ed 100644
--- a/Utils/Barcode/HIBCC.php
+++ b/Utils/Barcode/HIBCC.php
@@ -82,7 +82,7 @@ class HIBCC
 
     public function getDateFormat() : string
     {
-        return $this->dateFormat();
+        return $this->dateFormat;
     }
 
     public function setExpirationDate(\DateTime $date) : void