diff --git a/htdocs/main.inc.php b/htdocs/main.inc.php
index ec4f894e4e1..111b9b24ab2 100644
--- a/htdocs/main.inc.php
+++ b/htdocs/main.inc.php
@@ -1306,7 +1306,15 @@ function top_htmlhead($head, $title='', $disablejs=0, $disablehead=0, $arrayofjs
 		{
 			foreach($arrayofcss as $cssfile)
 			{
-				print '<!-- Includes CSS added by page -->'."\n".'<link rel="stylesheet" type="text/css" title="default" href="'.dol_buildpath($cssfile,1);
+			    if (preg_match('/^http/i', $cssfile))
+			    {
+			        $urltofile=$cssfile;
+			    }
+			    else
+			    {
+			        $urltofile=dol_buildpath($cssfile, 1);
+			    }
+				print '<!-- Includes CSS added by page -->'."\n".'<link rel="stylesheet" type="text/css" title="default" href="'.$urltofile;
 				// We add params only if page is not static, because some web server setup does not return content type text/css if url has parameters and browser cache is not used.
 				if (!preg_match('/\.css$/i',$cssfile)) print $themeparam;
 				print '">'."\n";