diff --git a/libc/arch-x86/syscalls.mk b/libc/arch-x86/syscalls.mk
index c210b21..e8c6a77 100644
--- a/libc/arch-x86/syscalls.mk
+++ b/libc/arch-x86/syscalls.mk
@@ -44,8 +44,8 @@
 syscall_src += arch-x86/syscalls/acct.S
 syscall_src += arch-x86/syscalls/read.S
 syscall_src += arch-x86/syscalls/write.S
-syscall_src += arch-x86/syscalls/__pread64.S
-syscall_src += arch-x86/syscalls/__pwrite64.S
+syscall_src += arch-x86/syscalls/pread64.S
+syscall_src += arch-x86/syscalls/pwrite64.S
 syscall_src += arch-x86/syscalls/__open.S
 syscall_src += arch-x86/syscalls/__openat.S
 syscall_src += arch-x86/syscalls/close.S
@@ -73,6 +73,7 @@
 syscall_src += arch-x86/syscalls/dup2.S
 syscall_src += arch-x86/syscalls/select.S
 syscall_src += arch-x86/syscalls/ftruncate.S
+syscall_src += arch-x86/syscalls/ftruncate64.S
 syscall_src += arch-x86/syscalls/getdents.S
 syscall_src += arch-x86/syscalls/fsync.S
 syscall_src += arch-x86/syscalls/fdatasync.S