Index: uspace/lib/c/include/async.h
===================================================================
--- uspace/lib/c/include/async.h	(revision e9d15d9f0efb393d698245b131a15268dc1cd68f)
+++ uspace/lib/c/include/async.h	(revision 3f74275b545272926eb993b683eae30e42326ab4)
@@ -166,5 +166,5 @@
     sysarg_t, async_port_handler_t, void *, port_id_t *);
 
-extern int async_irq_subscribe(int, int, async_notification_handler_t, void *,
+extern int async_irq_subscribe(int, async_notification_handler_t, void *,
     const irq_code_t *);
 extern int async_irq_unsubscribe(int);
Index: uspace/lib/c/include/ipc/irq.h
===================================================================
--- uspace/lib/c/include/ipc/irq.h	(revision e9d15d9f0efb393d698245b131a15268dc1cd68f)
+++ uspace/lib/c/include/ipc/irq.h	(revision 3f74275b545272926eb993b683eae30e42326ab4)
@@ -39,5 +39,5 @@
 #include <abi/ddi/irq.h>
 
-extern int ipc_irq_subscribe(int, int, sysarg_t, const irq_code_t *);
+extern int ipc_irq_subscribe(int, sysarg_t, const irq_code_t *);
 extern int ipc_irq_unsubscribe(int);