diff --git a/libc/arch-arm64/syscalls/futex.S b/libc/arch-arm64/syscalls/futex.S
new file mode 100644
index 0000000..c14ebbf
--- /dev/null
+++ b/libc/arch-arm64/syscalls/futex.S
@@ -0,0 +1,25 @@
+/* Generated by gensyscalls.py. Do not edit. */
+
+#include <private/bionic_asm.h>
+
+ENTRY(futex)
+    stp     x29, x30, [sp, #-16]!
+    .cfi_def_cfa_offset 16
+    .cfi_rel_offset x29, 0
+    .cfi_rel_offset x30, 8
+    mov     x29,  sp
+
+    mov     x8, __NR_futex
+    svc     #0
+
+    ldp     x29, x30, [sp], #16
+    .cfi_def_cfa_offset 0
+    .cfi_restore x29
+    .cfi_restore x30
+
+    cmn     x0, #(MAX_ERRNO + 1)
+    cneg    x0, x0, hi
+    b.hi    __set_errno
+
+    ret
+END(futex)