diff --git a/includes/form.inc b/includes/form.inc
index a443b9ba9c6266c67508acad9c8a463f423c2d31..54cda836abe4bc5d9170a3d543444a097dd78171 100644
--- a/includes/form.inc
+++ b/includes/form.inc
@@ -1720,9 +1720,9 @@ function expand_date($element) {
 /**
  * Validates the date type to stop dates like February 30, 2006.
  */
-function date_validate($form) {
-  if (!checkdate($form['#value']['month'], $form['#value']['day'], $form['#value']['year'])) {
-    form_error($form, t('The specified date is invalid.'));
+function date_validate($element) {
+  if (!checkdate($element['#value']['month'], $element['#value']['day'], $element['#value']['year'])) {
+    form_error($element, t('The specified date is invalid.'));
   }
 }