diff --git a/libc/arch-mips/syscalls.mk b/libc/arch-mips/syscalls.mk
index 8d87b29..a376c12 100644
--- a/libc/arch-mips/syscalls.mk
+++ b/libc/arch-mips/syscalls.mk
@@ -56,6 +56,7 @@
 syscall_src += arch-mips/syscalls/eventfd.S
 syscall_src += arch-mips/syscalls/execve.S
 syscall_src += arch-mips/syscalls/faccessat.S
+syscall_src += arch-mips/syscalls/fallocate64.S
 syscall_src += arch-mips/syscalls/fchdir.S
 syscall_src += arch-mips/syscalls/fchmod.S
 syscall_src += arch-mips/syscalls/fchmodat.S