diff --git a/htdocs/webservices/server_productorservice.php b/htdocs/webservices/server_productorservice.php
index d464d64a99c..ea8ea85fa32 100644
--- a/htdocs/webservices/server_productorservice.php
+++ b/htdocs/webservices/server_productorservice.php
@@ -777,11 +777,11 @@ function getProductsForCategory($authentication,$id,$lang='')
 						    	'id' => $obj->id,
 					   			'ref' => $obj->ref,
 					   			'ref_ext' => $obj->ref_ext,
-					    		'label' => $obj->multilangs[$langs->defaultlang]["label"]?$obj->multilangs[$langs->defaultlang]["label"]:$obj->label,
-					    		'description' => $obj->multilangs[$langs->defaultlang]["description"]?$obj->multilangs[$langs->defaultlang]["description"]:$obj->description,
+					    		'label' => ! empty($obj->multilangs[$langs->defaultlang]["label"]) ? $obj->multilangs[$langs->defaultlang]["label"] : $obj->label,
+					    		'description' => ! empty($obj->multilangs[$langs->defaultlang]["description"]) ? $obj->multilangs[$langs->defaultlang]["description"] : $obj->description,
 					    		'date_creation' => dol_print_date($obj->date_creation,'dayhourrfc'),
 					    		'date_modification' => dol_print_date($obj->date_modification,'dayhourrfc'),
-					            'note' => $obj->multilangs[$langs->defaultlang]["note"]?$obj->multilangs[$langs->defaultlang]["note"]:$obj->note,
+					            'note' => ! empty($obj->multilangs[$langs->defaultlang]["note"]) ? $obj->multilangs[$langs->defaultlang]["note"] : $obj->note,
 					            'status_tosell' => $obj->status,
 					            'status_tobuy' => $obj->status_buy,
 		                		'type' => $obj->type,