diff --git a/htdocs/core/class/html.formsetup.class.php b/htdocs/core/class/html.formsetup.class.php
index a7fb11e624f..1caac28911a 100644
--- a/htdocs/core/class/html.formsetup.class.php
+++ b/htdocs/core/class/html.formsetup.class.php
@@ -1105,6 +1105,9 @@ class FormSetupItem
 				$out.= $this->langs->trans("NorProspectNorCustomer");
 			}
 		} elseif ($this->type == 'product') {
+			if (!class_exists("Product")) {
+				require_once DOL_DOCUMENT_ROOT.'/product/class/product.class.php';
+			}
 			$product = new Product($this->db);
 			$resprod = $product->fetch($this->fieldValue);
 			if ($resprod > 0) {
diff --git a/htdocs/modulebuilder/template/admin/setup.php b/htdocs/modulebuilder/template/admin/setup.php
index 7bf97081341..1c46028b142 100644
--- a/htdocs/modulebuilder/template/admin/setup.php
+++ b/htdocs/modulebuilder/template/admin/setup.php
@@ -55,9 +55,6 @@ global $langs, $user;
 // Libraries
 require_once DOL_DOCUMENT_ROOT."/core/lib/admin.lib.php";
 require_once '../lib/mymodule.lib.php';
-require_once DOL_DOCUMENT_ROOT.'/product/class/product.class.php';
-
-
 //require_once "../class/myclass.class.php";
 
 // Translations