diff --git a/htdocs/categories/categorie.php b/htdocs/categories/categorie.php
index 2a6e437c765..4a7ceaf36c3 100644
--- a/htdocs/categories/categorie.php
+++ b/htdocs/categories/categorie.php
@@ -39,6 +39,7 @@ $type	= GETPOST('type');
 $mesg	= GETPOST('mesg');
 
 $removecat = GETPOST('removecat','int');
+$catMere=GETPOST('catMere','int');
 
 $dbtablename = '';
 
@@ -121,7 +122,7 @@ if ($removecat > 0)
 }
 
 // Add object into a category
-if (isset($_REQUEST["catMere"]) && $_REQUEST["catMere"]>=0)
+if ($catMere > 0)
 {
 	if ($type==0 && ($user->rights->produit->creer || $user->rights->service->creer))
 	{
@@ -150,7 +151,7 @@ if (isset($_REQUEST["catMere"]) && $_REQUEST["catMere"]>=0)
 		$elementtype = 'member';
 	}
 	$cat = new Categorie($db);
-	$result=$cat->fetch($_REQUEST["catMere"]);
+	$result=$cat->fetch($catMere);
 
 	$result=$cat->add_type($object,$elementtype);
 	if ($result >= 0)
@@ -162,7 +163,6 @@ if (isset($_REQUEST["catMere"]) && $_REQUEST["catMere"]>=0)
 		if ($cat->error == 'DB_ERROR_RECORD_ALREADY_EXISTS') $mesg='<div class="error">'.$langs->trans("ObjectAlreadyLinkedToCategory").'</div>';
 		else $mesg=$langs->trans("Error").' '.$cat->error;
 	}
-
 }
 
 
diff --git a/htdocs/categories/class/categorie.class.php b/htdocs/categories/class/categorie.class.php
index ad11b066e8b..3a31f6b0e7f 100644
--- a/htdocs/categories/class/categorie.class.php
+++ b/htdocs/categories/class/categorie.class.php
@@ -579,7 +579,8 @@ class Categorie
 			$cats = array ();
 			while ($rec = $this->db->fetch_array($res))
 			{
-				$cat = new Categorie($this->db, $rec['fk_categorie_fille']);
+				$cat = new self($this->db);
+				$cat->fetch($rec['fk_categorie_fille']);
 				$cats[] = $cat;
 			}
 			return $cats;
@@ -826,9 +827,10 @@ class Categorie
 		if ($res)
 		{
 			$cats = array ();
-			while ($record = $this->db->fetch_array($res))
+			while ($rec = $this->db->fetch_array($res))
 			{
-				$cat = new Categorie($this->db, $record['rowid']);
+				$cat = new self($this->db);
+				$cat->fetch($rec['rowid']);
 				$cats[$record['rowid']] = $cat;
 			}
 			return $cats;
@@ -1059,9 +1061,11 @@ class Categorie
 
 		if ($res)
 		{
-			while ($cat = $this->db->fetch_array($res))
+			while ($rec = $this->db->fetch_array($res))
 			{
-				$meres[] = new Categorie($this->db, $cat['fk_categorie_mere']);
+				$cat = new self($this->db);
+				$cat->fetch($rec['fk_categorie_mere']);
+				$meres[] = $cat;
 			}
 			return $meres;
 		}
@@ -1125,9 +1129,11 @@ class Categorie
 		$res = $this->db->query($sql);
 		if ($res)
 		{
-			while ($cat = $this->db->fetch_array($res))
+			while ($rec = $this->db->fetch_array($res))
 			{
-				$cats[] = new Categorie($this->db, $cat['fk_categorie']);
+				$cat = new self($this->db);
+				$cat->fetch($rec['fk_categorie']);
+				$cats[] = $cat;
 			}
 
 			return $cats;
@@ -1174,9 +1180,11 @@ class Categorie
 		$res  = $this->db->query($sql);
 		if ($res)
 		{
-			while ($id = $this->db->fetch_array($res))
+			while ($rec = $this->db->fetch_array($res))
 			{
-				$cats[] = new Categorie($this->db, $id['rowid']);
+				$cat = new self($this->db);
+				$cat->fetch($rec['rowid']);
+				$cats[] = $cat;
 			}
 
 			return $cats;
diff --git a/htdocs/categories/edit.php b/htdocs/categories/edit.php
index 015b964d452..76b38f29681 100644
--- a/htdocs/categories/edit.php
+++ b/htdocs/categories/edit.php
@@ -108,7 +108,9 @@ print_fiche_titre($langs->trans("ModifCat"));
 dol_htmloutput_errors($mesg);
 
 
-$categorie = new Categorie($db, $id);
+$object = new Categorie($db);
+$object->fetch($id);
+
 $form = new Form($db);
 
 print '<table class="notopnoleft" border="0" width="100%">';
@@ -119,7 +121,7 @@ print "\n";
 print '<form method="post" action="'.$_SERVER['PHP_SELF'].'">';
 print '<input type="hidden" name="token" value="'.$_SESSION['newtoken'].'">';
 print '<input type="hidden" name="action" value="update">';
-print '<input type="hidden" name="id" value="'.$categorie->id.'">';
+print '<input type="hidden" name="id" value="'.$object->id.'">';
 print '<input type="hidden" name="type" value="'.$type.'">';
 
 print '<table class="border" width="100%">';
@@ -127,7 +129,7 @@ print '<table class="border" width="100%">';
 // Ref
 print '<tr><td class="fieldrequired">';
 print $langs->trans("Ref").'</td>';
-print '<td><input type="text" size="25" id="nom" name ="nom" value="'.$categorie->label.'" />';
+print '<td><input type="text" size="25" id="nom" name ="nom" value="'.$object->label.'" />';
 print '</tr>';
 
 // Description
@@ -135,13 +137,13 @@ print '<tr>';
 print '<td width="25%">'.$langs->trans("Description").'</td>';
 print '<td>';
 require_once(DOL_DOCUMENT_ROOT."/core/class/doleditor.class.php");
-$doleditor=new DolEditor('description',$categorie->description,'',200,'dolibarr_notes','',false,true,$conf->fckeditor->enabled,ROWS_6,50);
+$doleditor=new DolEditor('description',$object->description,'',200,'dolibarr_notes','',false,true,$conf->fckeditor->enabled,ROWS_6,50);
 $doleditor->Create();
 print '</td></tr>';
 
 // Parent category
 print '<tr><td>'.$langs->trans("In").'</td><td>';
-print $form->select_all_categories($type,$categorie->id_mere,'catMere',64,$categorie->id);
+print $form->select_all_categories($type,$object->id_mere,'catMere',64,$object->id);
 print '</td></tr>';
 
 print '</table>';
@@ -154,7 +156,7 @@ print '</form>';
 
 print '</td></tr></table>';
 
-$db->close();
 
 llxFooter();
+$db->close();
 ?>