diff --git a/UPGRADE-3.4.md b/UPGRADE-3.4.md
index 38891caf76..765e5cf467 100644
--- a/UPGRADE-3.4.md
+++ b/UPGRADE-3.4.md
@@ -124,7 +124,7 @@ Form
    ```php
    class MyTimezoneType extends TimezoneType
    {
-       public function loadChoices()
+       public function loadChoiceList()
        {
            // override the method
        }
diff --git a/UPGRADE-4.0.md b/UPGRADE-4.0.md
index 4a6d02b374..14dc6f07a6 100644
--- a/UPGRADE-4.0.md
+++ b/UPGRADE-4.0.md
@@ -368,7 +368,7 @@ Form
    ```php
    class MyTimezoneType extends TimezoneType
    {
-       public function loadChoices()
+       public function loadChoiceList()
        {
            // override the method
        }