diff --git a/scripts/codegen/__init__.py b/scripts/codegen/__init__.py
index 820392b..4bc6c07 100644
--- a/scripts/codegen/__init__.py
+++ b/scripts/codegen/__init__.py
@@ -5,10 +5,15 @@ supported_architectures = {
 }
 
 def arch_includes(header, root=""):
+    from pathlib import Path
+    root = Path(root)
+    header = Path(header)
+
     prefix = "if"
     for arch, define in supported_architectures.items():
+        path = root / "arch" / arch / header
         cog.outl(f"#{prefix} defined({define})")
-        cog.outl(f"#include <{root}arch/{arch}/{header}>")
+        cog.outl(f"#include <{path}>")
         prefix = "elif"
     cog.outl("#else")
     cog.outl('#error "Unsupported platform"')