diff --git a/UPGRADE-4.0.md b/UPGRADE-4.0.md
index e4aec3709008d..80451f5d61a4c 100644
--- a/UPGRADE-4.0.md
+++ b/UPGRADE-4.0.md
@@ -323,7 +323,7 @@ Form
    ```php
    class MyTimezoneType extends AbstractType
    {
-       public function. getParent()
+       public function getParent()
        {
            return TimezoneType::class;
        }