diff --git a/includes/form.inc b/includes/form.inc
index 88ef304..d6a7d3a 100644
--- a/includes/form.inc
+++ b/includes/form.inc
@@ -3333,7 +3333,7 @@ function form_process_container($element, &$form_state) {
 /**
  * Returns HTML to wrap child elements in a container.
  *
- * Used for grouped form items. Can also be used as a #theme_wrapper for any
+ * Used for grouped form items. Can also be used as a #theme_wrappers for any
  * renderable element, to surround it with a <div> and add attributes such as
  * classes or an HTML id.
  *