diff --git a/libc/arch-arm/syscalls.mk b/libc/arch-arm/syscalls.mk
index e6c84f6..1f2a1cd 100644
--- a/libc/arch-arm/syscalls.mk
+++ b/libc/arch-arm/syscalls.mk
@@ -14,6 +14,7 @@
 syscall_src += arch-arm/syscalls/getresuid.S
 syscall_src += arch-arm/syscalls/getresgid.S
 syscall_src += arch-arm/syscalls/gettid.S
+syscall_src += arch-arm/syscalls/readahead.S
 syscall_src += arch-arm/syscalls/getgroups.S
 syscall_src += arch-arm/syscalls/getpgid.S
 syscall_src += arch-arm/syscalls/getppid.S