diff --git a/systemd.changes b/systemd.changes
index d156a94e..1375f760 100644
--- a/systemd.changes
+++ b/systemd.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Sep 14 06:33:05 UTC 2023 - Franck Bui <fbui@suse.com>
+
+- systemd.spec: %regenerate_initrd_post is only used by udev sub-package hence
+  move the build requirement pulling this macro in in the list of udev BRs.
+
 -------------------------------------------------------------------
 Tue Sep 12 19:24:02 UTC 2023 - Franck Bui <fbui@suse.com>
 
diff --git a/systemd.spec b/systemd.spec
index 78677eb4..31a46215 100644
--- a/systemd.spec
+++ b/systemd.spec
@@ -108,9 +108,6 @@ BuildRequires:  libmount-devel >= 2.27.1
 BuildRequires:  meson >= 0.53.2
 BuildRequires:  pam-devel
 BuildRequires:  python3-Jinja2
-# regenerate_initrd_post macro is expanded during build, hence this BR. Also
-# this macro was introduced since version 12.4.
-BuildRequires:  suse-module-tools >= 12.4
 BuildRequires:  systemd-rpm-macros
 BuildRequires:  pkgconfig(blkid) >= 2.26
 
@@ -307,6 +304,8 @@ Requires(pre):  group(kvm)
 Requires(post): sed
 Requires(post): coreutils
 Requires(postun):coreutils
+# 'regenerate_initrd_post' macro is expanded during build, hence this BR.
+BuildRequires:  suse-module-tools
 %if %{without bootstrap}
 BuildRequires:  pkgconfig(libcryptsetup) >= 1.6.0
 BuildRequires:  pkgconfig(libkmod) >= 15