Index: uspace/lib/c/include/event.h
===================================================================
--- uspace/lib/c/include/event.h	(revision 63f89665fc0283c1661274dc636d5a66e03d48b4)
+++ uspace/lib/c/include/event.h	(revision 631ee0c5ac25e59640d806b55305f80f6814c851)
@@ -39,5 +39,5 @@
 #include <ipc/ipc.h>
 
-extern int event_subscribe(event_type_t, ipcarg_t);
+extern int event_subscribe(event_type_t, sysarg_t);
 
 #endif