diff --git a/docs/5.0/uri/extension.md b/docs/5.0/uri/extension.md
index 28408e6a..15574704 100644
--- a/docs/5.0/uri/extension.md
+++ b/docs/5.0/uri/extension.md
@@ -150,7 +150,7 @@ class Mailto extends AbstractUri
 
         $path = implode(',', array_map('rawurlencode', $emails));
 
-        return new static::createFromComponents(['scheme' => mailto', 'path' => $path]);
+        return new static::createFromComponents(['scheme' => 'mailto', 'path' => $path]);
     }
 }
 ~~~