diff --git a/phpdoc.php b/phpdoc.php
index 58933f7..7df5a22 100644
--- a/phpdoc.php
+++ b/phpdoc.php
@@ -1397,7 +1397,7 @@ public function setInput(Mat $blob, string $name = '') {
     /**
      * @return Mat
      */
-    public function forward() {
+    public function forward(string $name = '') {
 
     }
 }