Index: kernel/generic/src/ipc/kbox.c
===================================================================
--- kernel/generic/src/ipc/kbox.c	(revision eb13ef8440f5e94338275db8fd83e4e513c82ab1)
+++ kernel/generic/src/ipc/kbox.c	(revision bc73be3215c832cdb0c8a5022db800902f9f62dc)
@@ -121,5 +121,5 @@
 
 	LOG("Continue with hangup message.");
-	IPC_SET_RETVAL(&call->data, 0);
+	ipc_set_retval(&call->data, 0);
 	ipc_answer(&TASK->kb.box, call);
 
@@ -174,5 +174,5 @@
 			continue;  /* Try again. */
 
-		switch (IPC_GET_IMETHOD(&call->data)) {
+		switch (ipc_get_imethod(&call->data)) {
 
 		case IPC_M_DEBUG: