diff --git a/mod/wiki/pagelib.php b/mod/wiki/pagelib.php
index 5304ab237d8..d07520385e2 100644
--- a/mod/wiki/pagelib.php
+++ b/mod/wiki/pagelib.php
@@ -2149,6 +2149,10 @@ class page_wiki_confirmrestore extends page_wiki_save {
         $PAGE->set_url($CFG->wwwroot . '/mod/wiki/viewversion.php', array('pageid' => $this->page->id, 'versionid' => $this->version->id));
     }
 
+    function print_header() {
+        $this->set_url();
+    }
+
     function print_content() {
         global $CFG, $PAGE;