diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 56cb009..beee5b3 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -131,6 +131,7 @@
 cond_syscall(ppc_rtas);
 cond_syscall(sys_spu_run);
 cond_syscall(sys_spu_create);
+cond_syscall(sys_subpage_prot);
 
 /* mmu depending weak syscall entries */
 cond_syscall(sys_mprotect);