diff --git a/mod/wiki/ewiki/plugins/moodle/f_fixhtml.php b/mod/wiki/ewiki/plugins/moodle/f_fixhtml.php
index 8202cda8a63ef..079677521118a 100644
--- a/mod/wiki/ewiki/plugins/moodle/f_fixhtml.php
+++ b/mod/wiki/ewiki/plugins/moodle/f_fixhtml.php
@@ -13,7 +13,7 @@ function).  So following code is not meant to fix any possible html file,
 */
 
 
-define("EWIKI_XHTML", 0);
+define("EWIKI_XHTML", 1);
 $ewiki_plugins["page_final"][] = "ewiki_html_tag_balancer";