diff --git a/profiles/templates/3.3/6_ac_install_patch/sys-apps/portage/portage-2.2.20-fix_binpkg_fetcher.patch b/profiles/templates/3.3/6_ac_install_patch/sys-apps/portage/portage-2.2.20-fix_binpkg_fetcher.patch
index 96b6c1070..accbf7d09 100644
--- a/profiles/templates/3.3/6_ac_install_patch/sys-apps/portage/portage-2.2.20-fix_binpkg_fetcher.patch
+++ b/profiles/templates/3.3/6_ac_install_patch/sys-apps/portage/portage-2.2.20-fix_binpkg_fetcher.patch
@@ -1,3 +1,4 @@
+# Calculate format=diff
 diff --git a/pym/_emerge/BinpkgFetcher.py b/pym/_emerge/BinpkgFetcher.py
 index a7f2d44..91d24e0 100644
 --- a/pym/_emerge/BinpkgFetcher.py