diff --git a/x86_64-blog_os.json b/x86_64-blog_os.json
index c1c29f9e..49f8a97a 100644
--- a/x86_64-blog_os.json
+++ b/x86_64-blog_os.json
@@ -1,6 +1,6 @@
 {
     "llvm-target": "x86_64-unknown-none",
-    "data-layout": "e-m:e-i64:64-f80:128-n8:16:32:64-S128",
+    "data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128",
     "arch": "x86_64",
     "target-endian": "little",
     "target-pointer-width": "64",