diff --git a/htdocs/categories/viewcat.php b/htdocs/categories/viewcat.php
index 329827cfa6a41029d4c643ced3c127992eb2e9b2..bd902b684828c6efc87012adc52b8f276e6b3884 100644
--- a/htdocs/categories/viewcat.php
+++ b/htdocs/categories/viewcat.php
@@ -331,7 +331,7 @@ if($c->type == 2)
 // List of members
 if ($c->type == 3)
 {
-	require_once(DOL_DOCUMENT_ROOT."/adherents/class/Adherent.class.php");
+	require_once(DOL_DOCUMENT_ROOT."/adherents/class/adherent.class.php");
 
 	$prods = $c->get_type("member","Adherent");
 	if ($prods < 0)