diff --git a/arch/aarch64/bits/mman.h b/arch/aarch64/bits/mman.h
new file mode 100644
index 00000000..6d9d8850
--- /dev/null
+++ b/arch/aarch64/bits/mman.h
@@ -0,0 +1 @@
+#define PROT_BTI 0x10