Index: uspace/lib/c/include/event.h
===================================================================
--- uspace/lib/c/include/event.h	(revision 64d2b101abaf56a6f7c27f0d6b099785aa173f36)
+++ uspace/lib/c/include/event.h	(revision e7079cfccf40b3535b85a699063f3ecc42490440)
@@ -39,4 +39,5 @@
 
 extern int event_subscribe(event_type_t, sysarg_t);
+extern int event_unmask(event_type_t);
 
 #endif