Index: uspace/lib/c/include/ipc/ip.h
===================================================================
--- uspace/lib/c/include/ipc/ip.h	(revision 779a47d539fd6615c1f97c3f3e8d6afa977fc7ae)
+++ uspace/lib/c/include/ipc/ip.h	(revision 6b10dab6510950964fc02ac960103bbaedf76314)
@@ -93,5 +93,5 @@
 #define IP_SET_HEADERLEN(answer, value) \
 	do { \
-		ipcarg_t argument = (ipcarg_t) (value); \
+		sysarg_t argument = (sysarg_t) (value); \
 		IPC_SET_ARG2(*answer, argument); \
 	} while (0)