diff --git a/linux/syscall.h b/linux/syscall.h
index 2b6cf27b..74c678ae 100644
--- a/linux/syscall.h
+++ b/linux/syscall.h
@@ -99,6 +99,7 @@ int sys_mq_notify(), sys_mq_getsetattr();
 int sys_epoll_create(), sys_epoll_ctl(), sys_epoll_wait();
 int sys_waitid(), sys_fadvise64(), sys_fadvise64_64();
 int sys_mbind(), sys_get_mempolicy(), sys_set_mempolicy();
+int sys_arch_prctl();
 
 /* sys_socketcall subcalls */