Index: generic/include/syscall/syscall.h
===================================================================
--- generic/include/syscall/syscall.h	(revision f52e54dadbe80854e27bf629c007718c8506e33f)
+++ generic/include/syscall/syscall.h	(revision 613bc54e40bd66aec3da7e1b368afbcd6e8c6453)
@@ -33,4 +33,5 @@
 	SYS_IO = 0,
 	SYS_TLS_SET = 1, /* Hardcoded in AMD64,IA32 uspace - psthread.S */
+	SYS_INT_CONTROL = 2, /* Hardcoded in all SYSCALL handlers */
 	SYS_THREAD_CREATE,
 	SYS_THREAD_EXIT,