diff --git a/functions/session.xml b/functions/session.xml
index 08fb8869da..fc6e7be8fd 100644
--- a/functions/session.xml
+++ b/functions/session.xml
@@ -387,7 +387,8 @@ close
      associated with the current session.
     </simpara>
     <simpara>
-     This function returns true on success and false on failure.
+     This function returns true on success and false on failure to destroy
+     the session data.
     </simpara>
    </refsect1>
   </refentry>