diff --git a/include/ac_common.php b/include/ac_common.php
index ad3430725..6a9fdaa20 100644
--- a/include/ac_common.php
+++ b/include/ac_common.php
@@ -310,8 +310,8 @@ function html_page_start($p_theme="", $p_script="", $p_script2="")
     <TITLE>$title</TITLE>
 	<link rel=\"icon\" type=\"image/ico\" href=\"favicon.ico\" />
     <META http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">
-    <LINK REL=\"stylesheet\" type=\"text/css\" href=\"./$style\" media=\"screen\">
-    <link rel=\"stylesheet\" type=\"text/css\" href=\"style-print.css\" media=\"print\">" .
+    <LINK REL=\"stylesheet\" type=\"text/css\" href=\"./$style\" media=\"screen\"/>
+    <link rel=\"stylesheet\" type=\"text/css\" href=\"style-print.css\" media=\"print\"/>" .
     $p_script2 . "
     ";
     echo '<script language="javascript" src="js/calendar.js"></script>