diff --git a/templates/bootstrap/bootstrap-panel.vars.php b/templates/bootstrap/bootstrap-panel.vars.php
index 87de5e1..cda9140 100644
--- a/templates/bootstrap/bootstrap-panel.vars.php
+++ b/templates/bootstrap/bootstrap-panel.vars.php
@@ -44,11 +44,6 @@ function bootstrap_preprocess_bootstrap_panel(&$variables) {
       $attributes['class'] = array_values($attributes['class']);
     }
   }
-  // Force grouped fieldsets to not be collapsible (for vertical tabs).
-  if (!empty($element['#group'])) {
-    $variables['collapsible'] = FALSE;
-    $variables['collapsed'] = FALSE;
-  }
 
   // Generate an ID for the fieldset wrapper and body elements.
   if (!isset($attributes['id'])) {