diff --git a/modules/backend/classes/FormTabs.php b/modules/backend/classes/FormTabs.php
index a4611dddd..6ef861255 100644
--- a/modules/backend/classes/FormTabs.php
+++ b/modules/backend/classes/FormTabs.php
@@ -118,7 +118,10 @@ class FormTabs implements IteratorAggregate, ArrayAccess
                 if ($fieldName == $name) {
                     unset($this->fields[$tab][$fieldName]);
 
-                    if (!sizeof($this->fields[$tab])) {
+                    /*
+                     * Remove empty tabs from collection
+                     */
+                    if (!count($this->fields[$tab])) {
                         unset($this->fields[$tab]);
                     }