diff --git a/setupsrc/pypdfium2_setup/packaging_base.py b/setupsrc/pypdfium2_setup/packaging_base.py
index 09d16518e..4c1aa7d59 100644
--- a/setupsrc/pypdfium2_setup/packaging_base.py
+++ b/setupsrc/pypdfium2_setup/packaging_base.py
@@ -308,7 +308,7 @@ def call_ctypesgen(target_dir, include_dir, pl_name, use_v8xfa=False, guard_symb
     if not guard_symbols:
         args += ["--no-symbol-guards"]
     if use_v8xfa:
-        args += ["-D", "PDF_ENABLE_XFA", "PDF_ENABLE_V8"]
+        args += ["-D", "PDF_ENABLE_V8", "PDF_ENABLE_XFA"]
     if pl_name.startswith(SystemNames.windows) and Host.system == SystemNames.windows:
         args += ["-D", "_WIN32"]
     args += ["--headers"] + [h.name for h in sorted(include_dir.glob("*.h"))] + ["-o", bindings]