diff --git a/mkosi.images/system/mkosi.conf.d/10-centos-fedora/mkosi.build.chroot b/mkosi.images/system/mkosi.conf.d/10-centos-fedora/mkosi.build.chroot
index 6d9380c87b..3a09f00c25 100755
--- a/mkosi.images/system/mkosi.conf.d/10-centos-fedora/mkosi.build.chroot
+++ b/mkosi.images/system/mkosi.conf.d/10-centos-fedora/mkosi.build.chroot
@@ -72,6 +72,7 @@ ANNOBIN="no-active-checks" rpmbuild \
     --define "__brp_strip_comment_note %{nil}" \
     --define "__brp_strip_static_archive %{nil}" \
     --define "__brp_check_rpaths %{nil}" \
+    --undefine __brp_add_determinism \
     --define "__elf_exclude_path ^/usr/lib/systemd/tests/unit-tests/.*$" \
     --define "__script_requires %{nil}" \
     --define "_find_debuginfo_dwz_opts %{nil}" \