diff --git a/core/includes/form.inc b/core/includes/form.inc
index 15c6634..ca0ba8a 100644
--- a/core/includes/form.inc
+++ b/core/includes/form.inc
@@ -1039,7 +1039,7 @@ function theme_fieldset($variables) {
 
   $output = '<fieldset' . new Attribute($element['#attributes']) . '>';
 
-  if ((isset($element['#title']) && $element['#title'] !== '') || !empty($element['#required'])) {
+  if ((isset($element['#title']) && $element['#title'] != '') || !empty($element['#required'])) {
     // Always wrap fieldset legends in a SPAN for CSS positioning.
     $output .= '<legend' . new Attribute($legend_attributes) . '><span class="fieldset-legend">';
     $output .= t('!title!required', array('!title' => $element['#title'], '!required' => $required));