diff --git a/include/class.format.php b/include/class.format.php
index 03216e4a061665b2b18a856f8bf95509f9dd5236..048b886b7913279b6414c904f3d7ab89eb5204e2 100644
--- a/include/class.format.php
+++ b/include/class.format.php
@@ -199,7 +199,7 @@ class Format {
function safe_html($html) {
// Remove HEAD and STYLE sections
$html = preg_replace(
- array(':<(head|style|script).+</\1>:is', # <head> and <style> sections
+ array(':<(head|style|script).+?</\1>:is', # <head> and <style> sections
':<!\[[^]<]+\]>:', # <![if !mso]> and friends
':<!DOCTYPE[^>]+>:', # <!DOCTYPE ... >
':<\?[^>]+>:', # <?xml version="1.0" ... >