diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 7995ef5..ca7d84f 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -140,6 +140,7 @@
 cond_syscall(sys_ssetmask);
 cond_syscall(sys_vm86old);
 cond_syscall(sys_vm86);
+cond_syscall(sys_modify_ldt);
 cond_syscall(sys_ipc);
 cond_syscall(compat_sys_ipc);
 cond_syscall(compat_sys_sysctl);