diff --git a/src/Forms/FormField.php b/src/Forms/FormField.php
index aba34bf23..7a9efd5d4 100644
--- a/src/Forms/FormField.php
+++ b/src/Forms/FormField.php
@@ -1264,7 +1264,7 @@ class FormField extends RequestHandler
*
* The field type is the class name with the word Field dropped off the end, all lowercase.
*
- * It's handy for assigning HTML classes. Doesn't signify the attribute.
+ * It's handy for assigning HTML classes. Doesn't signify the input type attribute.
*
* @see {link getAttributes()}.
*
@@ -1293,7 +1293,7 @@ class FormField extends RequestHandler
/**
* Describe this field, provide help text for it.
*
- * By default, renders as a underneath the form field.
+ * By default, renders as a span class="description" underneath the form field.
*
* @param string $description
*
diff --git a/src/Forms/GroupedDropdownField.php b/src/Forms/GroupedDropdownField.php
index 0d839df8b..aeb44fa4d 100644
--- a/src/Forms/GroupedDropdownField.php
+++ b/src/Forms/GroupedDropdownField.php
@@ -6,14 +6,14 @@ use SilverStripe\ORM\ArrayList;
use SilverStripe\View\ArrayData;
/**
- * Grouped dropdown, using