diff --git a/program/lib/Roundcube/rcube_session.php b/program/lib/Roundcube/rcube_session.php
index 4282c0cbb..059cc1112 100644
--- a/program/lib/Roundcube/rcube_session.php
+++ b/program/lib/Roundcube/rcube_session.php
@@ -419,7 +419,7 @@ class rcube_session
         $this->unsets[] = $var;
 
         if (isset($_SESSION[$var])) {
-            unset($_SESSION[$var])
+            unset($_SESSION[$var]);
         }
         else {
             $path = explode('.', $var);