diff --git a/serendipity_event_autotitle/ChangeLog b/serendipity_event_autotitle/ChangeLog
index 1d451fcf..7ee6966c 100644
--- a/serendipity_event_autotitle/ChangeLog
+++ b/serendipity_event_autotitle/ChangeLog
@@ -1,3 +1,6 @@
+0.1.12:
+    * Check for empty url, prevents heap overflow on some php installations
+    
 0.1.11:
     * Fixed Smarty3 API change issue
 
diff --git a/serendipity_event_autotitle/serendipity_event_autotitle.php b/serendipity_event_autotitle/serendipity_event_autotitle.php
index a7953685..f029f8e5 100755
--- a/serendipity_event_autotitle/serendipity_event_autotitle.php
+++ b/serendipity_event_autotitle/serendipity_event_autotitle.php
@@ -31,7 +31,7 @@ class serendipity_event_autotitle extends serendipity_event
         $propbag->add('description',   PLUGIN_EVENT_AUTOTITLE_DESC);
         $propbag->add('stackable',     false);
         $propbag->add('author',        'Malte Paskuda');
-        $propbag->add('version',       '0.1.11');
+        $propbag->add('version',       '0.1.12');
         $propbag->add('requirements',  array(
             'php'         => '4.1.0'
         ));
@@ -177,6 +177,9 @@ class serendipity_event_autotitle extends serendipity_event
             //grab the real url
             preg_match('|href="([^\"]*?)"|is', $link, $url);
             $url = $url[1];
+            if (empty($url)) {
+                continue;
+            }
             
             //prepare cache:
             $this->cache->_setFileName($url, $this->cache_group);