diff --git a/htdocs/categories/categorie.class.php b/htdocs/categories/categorie.class.php
index f5db96ef42a..fd54dd833d7 100644
--- a/htdocs/categories/categorie.class.php
+++ b/htdocs/categories/categorie.class.php
@@ -826,6 +826,7 @@ class Categorie
 
 		return implode($sep, $w);
 	}
+	
 	/**
 	* Retourne un tableau contenant la liste des catégories mères
 	*/
@@ -837,13 +838,20 @@ class Categorie
 		$sql .= "WHERE fk_categorie_fille = ".$this->id;
 
 		$res  = $this->db->query ($sql);
-
-		while ($cat = $this->db->fetch_array ($res))
+		
+		if ($res)
 		{
-			$meres[] = new Categorie ($this->db, $cat['fk_categorie_mere']);
+			while ($cat = $this->db->fetch_array ($res))
+			{
+				$meres[] = new Categorie ($this->db, $cat['fk_categorie_mere']);
+			}
+			return $meres;
+		}
+		else
+		{
+			dolibarr_print_error ($this->db);
+			return -1;
 		}
-
-		return $meres;
 	}
 
 	/**
diff --git a/htdocs/categories/viewcat.php b/htdocs/categories/viewcat.php
index b7659fa2b9c..f85390b41bb 100644
--- a/htdocs/categories/viewcat.php
+++ b/htdocs/categories/viewcat.php
@@ -132,6 +132,20 @@ if ($type == 0 && $conf->global->CATEGORY_ASSIGNED_TO_A_CUSTOMER)
 		print $langs->trans("AssignedToTheCustomer").'</td><td>';
 		print $soc->getNomUrl(1);
 		print '</td></tr>';
+		
+		$catsMeres = $c->get_meres ();
+
+		if ($catsMeres < 0)
+		{
+			dolibarr_print_error();
+		}
+		else if (count($catsMeres) > 0)
+		{
+			print '<tr><td width="20%" class="notopnoleft">';
+			print $langs->trans("CategoryContents").'</td><td>';
+			print ($c->visible ? $langs->trans("Visible") : $langs->trans("Invisible"));
+			print '</td></tr>';
+		}
 	}
 	else
 	{
diff --git a/htdocs/langs/en_US/categories.lang b/htdocs/langs/en_US/categories.lang
index e9fa03c4d04..9f1e4a397fa 100644
--- a/htdocs/langs/en_US/categories.lang
+++ b/htdocs/langs/en_US/categories.lang
@@ -73,4 +73,5 @@ ThisCategoryHasNoSupplier=This category does not contain any supplier.
 ThisCategoryHasNoCustomer=This category does not contain any customer.
 AssignedToCustomer=Assigned to a customer
 AssignedToTheCustomer=Assigned to the customer
-InternalCategory=Inernal category
\ No newline at end of file
+InternalCategory=Inernal category
+CategoryContents=Category contents
\ No newline at end of file
diff --git a/htdocs/langs/fr_FR/categories.lang b/htdocs/langs/fr_FR/categories.lang
index be9da5e62e5..cfe15245830 100644
--- a/htdocs/langs/fr_FR/categories.lang
+++ b/htdocs/langs/fr_FR/categories.lang
@@ -73,4 +73,5 @@ ThisCategoryHasNoSupplier=Cette cat
 ThisCategoryHasNoCustomer=Cette catégorie ne contient aucun client.
 AssignedToCustomer=Attribuer à un client
 AssignedToTheCustomer=Attribué au client
-InternalCategory=Catégorie interne
\ No newline at end of file
+InternalCategory=Catégorie interne
+CategoryContents=Contenu de la catégorie
\ No newline at end of file