diff --git a/libc/arch-x86/syscalls.mk b/libc/arch-x86/syscalls.mk
index f1b7e76..2352221 100644
--- a/libc/arch-x86/syscalls.mk
+++ b/libc/arch-x86/syscalls.mk
@@ -125,6 +125,7 @@
 syscall_src += arch-x86/syscalls/removexattr.S
 syscall_src += arch-x86/syscalls/lremovexattr.S
 syscall_src += arch-x86/syscalls/__statfs64.S
+syscall_src += arch-x86/syscalls/unshare.S
 syscall_src += arch-x86/syscalls/pause.S
 syscall_src += arch-x86/syscalls/gettimeofday.S
 syscall_src += arch-x86/syscalls/settimeofday.S