Index: kernel/generic/include/ipc/sysipc.h
===================================================================
--- kernel/generic/include/ipc/sysipc.h	(revision 2e51969e2c8c3905ceef1d73437f34d14c927dff)
+++ kernel/generic/include/ipc/sysipc.h	(revision 32099239a6124d59220f89570e99659141d22ed7)
@@ -45,6 +45,6 @@
     ipc_data_t *reply);
 unative_t sys_ipc_call_async_fast(unative_t phoneid, unative_t method, 
-    unative_t arg1, unative_t arg2);
-unative_t sys_ipc_call_async(unative_t phoneid, ipc_data_t *data);
+    unative_t arg1, unative_t arg2, unative_t arg3, unative_t arg4);
+unative_t sys_ipc_call_async_slow(unative_t phoneid, ipc_data_t *data);
 unative_t sys_ipc_answer_fast(unative_t callid, unative_t retval, 
     unative_t arg1, unative_t arg2);
Index: kernel/generic/include/syscall/syscall.h
===================================================================
--- kernel/generic/include/syscall/syscall.h	(revision 2e51969e2c8c3905ceef1d73437f34d14c927dff)
+++ kernel/generic/include/syscall/syscall.h	(revision 32099239a6124d59220f89570e99659141d22ed7)
@@ -51,5 +51,5 @@
 	SYS_IPC_CALL_SYNC_SLOW,
 	SYS_IPC_CALL_ASYNC_FAST,
-	SYS_IPC_CALL_ASYNC,
+	SYS_IPC_CALL_ASYNC_SLOW,
 	SYS_IPC_ANSWER_FAST,
 	SYS_IPC_ANSWER,