--- Libc/Libc-391.4.2/sys/SYSCALL-LIST
+++ Libc/Libc-498/sys/SYSCALL-LIST
@@ -57,7 +57,6 @@
 ioctl
 kill
 killpg
-ktrace
 link
 listen
 lseek
@@ -144,5 +143,6 @@
 waitpid
 wait3
 wait4
+waitid
 write
 writev