diff --git a/htdocs/main.inc.php b/htdocs/main.inc.php
index 82ff19e3771..2647cba166c 100644
--- a/htdocs/main.inc.php
+++ b/htdocs/main.inc.php
@@ -1707,9 +1707,9 @@ function top_htmlhead($head, $title = '', $disablejs = 0, $disablehead = 0, $arr
 				print '<!-- Includes JS added by page -->'."\n";
 				foreach ($arrayofjs as $jsfile) {
 					if (preg_match('/^(http|\/\/)/i', $jsfile)) {
-						print '<script src="'.$jsfile.'"></script>'."\n";
+						print '<script src="'.$jsfile.($ext ? ((strpos($jsfile, '?') === false) ? '?' : '&').$ext : '').'"></script>'."\n";
 					} else {
-						print '<script src="'.dol_buildpath($jsfile, 1).'"></script>'."\n";
+						print '<script src="'.dol_buildpath($jsfile, 1).($ext ? ((strpos($jsfile, '?') === false) ? '?' : '&').$ext : '').'"></script>'."\n";
 					}
 				}
 			}