@@ -138,10 +138,11 @@
 /*!
  * @class OFHTTPClient OFHTTPClient.h ObjFW/OFHTTPClient.h
  *
  * @brief A class for performing HTTP requests.
  */
+OF_SUBCLASSING_RESTRICTED
 @interface OFHTTPClient: OFObject
 {
 #ifdef OF_HTTPCLIENT_M
 @public
 #endif