diff --git a/viewtopic.php b/viewtopic.php
index fbb48e98..612fe484 100644
--- a/viewtopic.php
+++ b/viewtopic.php
@@ -500,12 +500,12 @@ if ($can_watch_topic)
 	if ($is_watching_topic)
 	{
 		$s_watching_topic = "<a href=\"". TOPIC_URL . $topic_id ."&amp;unwatch=topic&amp;start=$start&amp;sid=" . $userdata['session_id'] . '">' . $lang['STOP_WATCHING_TOPIC'] . '</a>';
-		$s_watching_topic_img = (isset($images['topic_un_watch'])) ? "<a href=\"" . TOPIC_URL . "$topic_id&amp;unwatch=topic&amp;start=$start&amp;sid=" . $userdata['session_id'] . '"><img src="' . $images['topic_un_watch'] . '" alt="' . $lang['STOP_WATCHING_TOPIC'] . '" title="' . $lang['STOP_WATCHING_TOPIC'] . '" border="0"></a>' : '';
+		$s_watching_topic_img = (!empty($images['topic_un_watch'])) ? "<a href=\"" . TOPIC_URL . "$topic_id&amp;unwatch=topic&amp;start=$start&amp;sid=" . $userdata['session_id'] . '"><img src="' . $images['topic_un_watch'] . '" alt="' . $lang['STOP_WATCHING_TOPIC'] . '" title="' . $lang['STOP_WATCHING_TOPIC'] . '" border="0"></a>' : '';
 	}
 	else
 	{
 		$s_watching_topic = "<a href=\"". TOPIC_URL . $topic_id ."&amp;watch=topic&amp;start=$start&amp;sid=" . $userdata['session_id'] . '">' . $lang['START_WATCHING_TOPIC'] . '</a>';
-		$s_watching_topic_img = (isset($images['Topic_watch'])) ? "<a href=\"". TOPIC_URL ."$topic_id&amp;watch=topic&amp;start=$start&amp;sid=" . $userdata['session_id'] . '"><img src="' . $images['Topic_watch'] . '" alt="' . $lang['START_WATCHING_TOPIC'] . '" title="' . $lang['START_WATCHING_TOPIC'] . '" border="0"></a>' : '';
+		$s_watching_topic_img = (!empty($images['topic_watch'])) ? "<a href=\"". TOPIC_URL ."$topic_id&amp;watch=topic&amp;start=$start&amp;sid=" . $userdata['session_id'] . '"><img src="' . $images['topic_watch'] . '" alt="' . $lang['START_WATCHING_TOPIC'] . '" title="' . $lang['START_WATCHING_TOPIC'] . '" border="0"></a>' : '';
 	}
 }