Index: kernel/generic/include/syscall/syscall.h
===================================================================
--- kernel/generic/include/syscall/syscall.h	(revision 9a1b20c34d5404b8272209d06c0239aa1a2384da)
+++ kernel/generic/include/syscall/syscall.h	(revision e5be99a7077c8f0e7100c97ffb281e790806cb3b)
@@ -63,4 +63,5 @@
 	SYS_IPC_ANSWER_SLOW,
 	SYS_IPC_FORWARD_FAST,
+	SYS_IPC_FORWARD_SLOW,
 	SYS_IPC_WAIT,
 	SYS_IPC_HANGUP,