diff --git a/macros b/macros
index e55f72583772708628238aac92d32099ecd264ab..31429a0b3e42abd2ef840e87c7ebce47a55ec6eb 100644
--- a/macros
+++ b/macros
@@ -235,10 +235,13 @@ print(result)
 
 %__arch_install_post   /usr/lib/rpm/check-buildroot
 
+# Default extension to use (for man pages and info files)
+%_extension .zst
+
 # Build root policy macros. Standard naming:
 # convert all '-' in basename to '_', add two leading underscores.
 %__brp_ldconfig /usr/lib/rpm/anolis/brp-ldconfig
-%__brp_compress COMPRESS="zstd -f --rm -19 -T0" COMPRESS_EXT=.zst /usr/lib/rpm/brp-compress
+%__brp_compress COMPRESS="zstd -f --rm -19 -T0" COMPRESS_EXT=%{_extension} /usr/lib/rpm/brp-compress
 %__brp_strip /usr/lib/rpm/brp-strip %{__strip}
 %__brp_strip_lto /usr/lib/rpm/anolis/brp-strip-lto %{__strip}
 %__brp_strip_comment_note /usr/lib/rpm/brp-strip-comment-note %{__strip} %{__objdump}
diff --git a/system-rpm-config.spec b/system-rpm-config.spec
index 0808cbba71f728871bec3a285b7d1493fa597c0d..a590bcbb125753849703e460aeef6ad3bd14a406 100644
--- a/system-rpm-config.spec
+++ b/system-rpm-config.spec
@@ -1,4 +1,4 @@
-%define anolis_release 17
+%define anolis_release 18
 
 Summary: Anolis OS specific rpm configuration files
 Name: system-rpm-config
@@ -190,6 +190,9 @@ install -p -m 644 -t %{buildroot}%{_rpmluadir}/anolis/srpm forge.lua
 %license MulanPSL
 
 %changelog
+* Sun Jan 15 2023 Funda Wang <fundawang@yeah.net> - 1:23-18
+- Add man pages compression extension macro
+
 * Thu Dec 22 2022 Funda Wang <fundawang@yeah.net> - 1:23-17
 - Bump epoch for upgrading from anolis 8