diff --git a/htdocs/core/class/extrafields.class.php b/htdocs/core/class/extrafields.class.php
index 7a449f3e7ea..6e4f6892e05 100644
--- a/htdocs/core/class/extrafields.class.php
+++ b/htdocs/core/class/extrafields.class.php
@@ -1766,15 +1766,18 @@ class ExtraFields
 						}
 					}
 				} else {
-					require_once DOL_DOCUMENT_ROOT.'/categories/class/categorie.class.php';
-
 					$toprint = array();
 					$obj = $this->db->fetch_object($resql);
-					$c = new Categorie($this->db);
-					$c->fetch($obj->rowid);
-					$ways = $c->print_all_ways(); // $ways[0] = "ccc2 >> ccc2a >> ccc2a1" with html formatted text
-					foreach ($ways as $way) {
-						$toprint[] = '<li class="select2-search-choice-dolibarr noborderoncategories"'.($c->color ? ' style="background: #'.$c->color.';"' : ' style="background: #bbb"').'>'.img_object('', 'category').' '.$way.'</li>';
+					if ($obj->rowid) {
+						require_once DOL_DOCUMENT_ROOT . '/categories/class/categorie.class.php';
+						$c = new Categorie($this->db);
+						$result = $c->fetch($obj->rowid);
+						if ($result > 0) {
+							$ways = $c->print_all_ways(); // $ways[0] = "ccc2 >> ccc2a >> ccc2a1" with html formatted text
+							foreach ($ways as $way) {
+								$toprint[] = '<li class="select2-search-choice-dolibarr noborderoncategories"' . ($c->color ? ' style="background: #' . $c->color . ';"' : ' style="background: #bbb"') . '>' . img_object('', 'category') . ' ' . $way . '</li>';
+							}
+						}
 					}
 					$value = '<div class="select2-container-multi-dolibarr" style="width: 90%;"><ul class="select2-choices-dolibarr">'.implode(' ', $toprint).'</ul></div>';
 				}