diff --git a/lib/rsslib.php b/lib/rsslib.php
index a16281714c8..b0adec3ad7e 100644
--- a/lib/rsslib.php
+++ b/lib/rsslib.php
@@ -23,7 +23,7 @@ function rss_get_link($courseid, $userid, $modulename, $id, $tooltiptext='') {
 
     $rsspix = $CFG->pixpath .'/i/rss.gif';
 
-    return '<a href="'. $rsspath .'"><img src="'. $rsspix .'" title="'. $tooltiptext .'" alt="" /></a>';
+    return '<a href="'. $rsspath .'"><img src="'. $rsspix .'" title="'. strip_tags($tooltiptext) .'" alt="" /></a>';
 
 }
 
@@ -405,4 +405,4 @@ function rss_unhtmlentities($string) {
     $trans_tbl = array_flip ($trans_tbl);
     return strtr ($string, $trans_tbl);
 }
-?>
\ No newline at end of file
+?>