diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 2d5146ced91..da773bc3775 100644
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -5199,7 +5199,7 @@ class Form
 			$out .= '<input type="submit" class="button smallpaddingimp" value="'.$langs->trans("Modify").'">';
 			$out .= '</form>';
 		} else {
-            $out .= '<span id="project_head_block">';
+            $out .= '<span class="project_head_block">';
 			if ($selected) {
 				$projet = new Project($this->db);
 				$projet->fetch($selected);