diff --git a/libc/arch-arm/syscalls.mk b/libc/arch-arm/syscalls.mk
index e635e68..b1c669d 100644
--- a/libc/arch-arm/syscalls.mk
+++ b/libc/arch-arm/syscalls.mk
@@ -121,6 +121,7 @@
 syscall_src += arch-arm/syscalls/removexattr.S
 syscall_src += arch-arm/syscalls/lremovexattr.S
 syscall_src += arch-arm/syscalls/__statfs64.S
+syscall_src += arch-arm/syscalls/unshare.S
 syscall_src += arch-arm/syscalls/pause.S
 syscall_src += arch-arm/syscalls/gettimeofday.S
 syscall_src += arch-arm/syscalls/settimeofday.S