diff --git a/libc/arch-x86/syscalls.mk b/libc/arch-x86/syscalls.mk
index 6ac3716..27153f9 100644
--- a/libc/arch-x86/syscalls.mk
+++ b/libc/arch-x86/syscalls.mk
@@ -69,6 +69,7 @@
 syscall_src += arch-x86/syscalls/fchmod.S
 syscall_src += arch-x86/syscalls/dup.S
 syscall_src += arch-x86/syscalls/pipe.S
+syscall_src += arch-x86/syscalls/pipe2.S
 syscall_src += arch-x86/syscalls/dup2.S
 syscall_src += arch-x86/syscalls/select.S
 syscall_src += arch-x86/syscalls/ftruncate.S