diff --git a/libc/arch-mips/syscalls.mk b/libc/arch-mips/syscalls.mk
index 51fd32d..263f307 100644
--- a/libc/arch-mips/syscalls.mk
+++ b/libc/arch-mips/syscalls.mk
@@ -63,6 +63,8 @@
 syscall_src += arch-mips/syscalls/madvise.S
 syscall_src += arch-mips/syscalls/mlock.S
 syscall_src += arch-mips/syscalls/munlock.S
+syscall_src += arch-mips/syscalls/mlockall.S
+syscall_src += arch-mips/syscalls/munlockall.S
 syscall_src += arch-mips/syscalls/mincore.S
 syscall_src += arch-mips/syscalls/__ioctl.S
 syscall_src += arch-mips/syscalls/readv.S