diff --git a/handlers/views_handler_filter.inc b/handlers/views_handler_filter.inc
index 9615c305..bda770b5 100644
--- a/handlers/views_handler_filter.inc
+++ b/handlers/views_handler_filter.inc
@@ -657,10 +657,13 @@ class views_handler_filter extends views_handler {
         if (empty($group['remove'])) {
           // Check if the title is defined but value wasn't defined.
           if (!empty($group['title'])) {
-            if ((!is_array($group['value']) && trim($group['value']) == "") ||
-                (is_array($group['value']) && count(array_filter($group['value'], '_views_array_filter_zero')) == 0)) {
-              form_error($form['group_info']['group_items'][$id]['value'],
-                t('The value is required if title for this item is defined.'));
+            // No value is needed for 'empty' and 'not empty' operator.
+            if (!in_array($group['operator'], array('empty', 'not empty'))) {
+              if ((!is_array($group['value']) && trim($group['value']) == "") ||
+                  (is_array($group['value']) && count(array_filter($group['value'], '_views_array_filter_zero')) == 0)) {
+                form_error($form['group_info']['group_items'][$id]['value'],
+                  t('The value is required if title for this item is defined.'));
+              }
             }
           }