diff --git a/mod/forum/view.php b/mod/forum/view.php
index 8fa833c09f0..167ad7541ff 100644
--- a/mod/forum/view.php
+++ b/mod/forum/view.php
@@ -65,6 +65,11 @@
     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
 
 /// Print header.
+
+    /// Add ajax-related libs
+    require_js(array('yui_yahoo', 'yui_event', 'yui_dom', 'yui_connection', 'yui_json'));
+    require_js($CFG->wwwroot . '/mod/forum/rate_ajax.js');
+
     $navigation = build_navigation('', $cm);
     print_header_simple(format_string($forum->name), "",
                  $navigation, "", "", true, $buttontext, navmenu($course, $cm));