@@ -26,11 +26,11 @@
  * @brief A representation of an attribute of an XML element as an object.
  */
 @interface OFXMLAttribute: OFXMLNode
 {
 @public
-	OFString *_name, *_namespace, *_stringValue;
+	OFString *_name, *_Nullable _namespace, *_stringValue;
 }
 
 /*!
  * The name of the attribute.
  */