diff --git a/markdown.php b/markdown.php
index b5be540..c93d4b1 100644
--- a/markdown.php
+++ b/markdown.php
@@ -83,9 +83,9 @@ class markdown
     // Automatics links :
     // <http://dominique.fournier38.fr>
     // <dominique@fournier38.fr>
-    $search[] = "#&lt;(https?://.+)&gt;#";
+    $search[] = "#&lt;(https?://.+)&gt;#U";
     $replace[] = "<a href='\\1'>\\1</a>";
-    $search[] = "#&lt;(.+@.+)&gt;#";
+    $search[] = "#&lt;(.+@.+)&gt;#U";
     $replace[] = "<a href='mailto:\\1'>\\1</a>";
     // TODO : Links by reference :
     // Voici un petit texte écrit par [Michel Fortin][mf].