diff --git a/plugins/PiwikAnalyticsPlugin.php b/plugins/PiwikAnalyticsPlugin.php
index 85a24c1320..45a11dfe43 100644
--- a/plugins/PiwikAnalyticsPlugin.php
+++ b/plugins/PiwikAnalyticsPlugin.php
@@ -96,7 +96,7 @@ document.write(unescape("%3Cscript src='" + pkBaseURL + "piwik.js' type='text/ja
 </script>
 <script type="text/javascript">
 try {
-    var piwikTracker = Piwik.getTracker(pkBaseURL + "piwik.php", 4);
+    var piwikTracker = Piwik.getTracker(pkBaseURL + "piwik.php", $this->piwikId);
     piwikTracker.trackPageView();
     piwikTracker.enableLinkTracking();
 } catch( err ) {}
@@ -108,4 +108,4 @@ ENDOFPIWIK;
         $action->raw($piwikCode);
         return true;
     }
-}
\ No newline at end of file
+}