Index: uspace/lib/c/include/ipc/irq.h
===================================================================
--- uspace/lib/c/include/ipc/irq.h	(revision 9c2c7d2247cc1ad0410cd61ab534af9a246d328b)
+++ uspace/lib/c/include/ipc/irq.h	(revision e9d15d9f0efb393d698245b131a15268dc1cd68f)
@@ -40,5 +40,5 @@
 
 extern int ipc_irq_subscribe(int, int, sysarg_t, const irq_code_t *);
-extern int ipc_irq_unsubscribe(int, int);
+extern int ipc_irq_unsubscribe(int);
 
 #endif