diff --git a/widgets/graphical-navigation.php b/widgets/graphical-navigation.php
index 14abca2..0e21ee0 100644
--- a/widgets/graphical-navigation.php
+++ b/widgets/graphical-navigation.php
@@ -87,16 +87,16 @@ class WidgetComicPressGraphicalStorylineNavigation extends WP_Widget {
       case 'story_next':
       case 'story_prev_in':
       case 'story_next_in':
-      	$ok = false;
+      	$obj_ok = false;
 	      $navi_class_names = array("navi-${which}");
       	if (is_object($target)) {
-      		$ok = true;
+      		$obj_ok = true;
 	        if (isset($css_name_mapping[$which])) { $navi_class_names[] = "navi-{$css_name_mapping[$which]}"; }
 
 					$link = get_permalink($target->ID);
 					if (($which == 'last') && ($instance['lastgohome'] == 'on')) { $link = get_bloginfo('url'); }
 				}
-				if ($ok) {
+				if ($ok && $obj_ok) {
 				  ?><a href="<?php echo $link; ?>"
 					  	 class="navi <?php echo implode(" ", $navi_class_names); ?>"
 					title="<?php echo $instance["${which}_title"]; ?>"><?php echo htmlspecialchars_decode($instance["${which}_title"]); ?></a><?php