diff --git a/library/Zend/View/Helper/Navigation/Menu.php b/library/Zend/View/Helper/Navigation/Menu.php
index d1623def388..c88e25b2c34 100644
--- a/library/Zend/View/Helper/Navigation/Menu.php
+++ b/library/Zend/View/Helper/Navigation/Menu.php
@@ -133,7 +133,7 @@ protected function renderDeepestMenu(
         $maxDepth,
         $escapeLabels,
         $addClassToListItem,
-        $liActiveClass
+        $liActiveClass = null
     ) {
         if (!$active = $this->findActive($container, $minDepth - 1, $maxDepth)) {
             return '';
@@ -164,7 +164,7 @@ protected function renderDeepestMenu(
             $liClasses = array();
             // Is page active?
             if ($subPage->isActive(true)) {
-                $liClasses[] = $liActiveClass;
+                $liClasses[] = $liActiveClass ?: $this->getLiActiveClass();
             }
             // Add CSS class from page to <li>
             if ($addClassToListItem && $subPage->getClass()) {
@@ -256,7 +256,7 @@ protected function renderNormalMenu(
         $onlyActive,
         $escapeLabels,
         $addClassToListItem,
-        $liActiveClass
+        $liActiveClass = null
     ) {
         $html = '';
 
@@ -337,7 +337,7 @@ protected function renderNormalMenu(
             $liClasses = array();
             // Is page active?
             if ($isActive) {
-                $liClasses[] = $liActiveClass;
+                $liClasses[] = $liActiveClass ?: $this->getLiActiveClass();
             }
             // Add CSS class from page to <li>
             if ($addClassToListItem && $page->getClass()) {