Index: generic/src/ipc/sysipc.c
===================================================================
--- generic/src/ipc/sysipc.c	(revision ae971b3e902b87e9e944e1e94506f329e69c3e97)
+++ generic/src/ipc/sysipc.c	(revision 208259c514adf11c285a7d79075e2270b2d64f47)
@@ -334,4 +334,5 @@
 	IPC_SET_ARG1(call->data, arg1);
 	IPC_SET_ARG2(call->data, arg2);
+	IPC_SET_ARG3(call->data, 0);
 
 	if (!(res=request_preprocess(call)))