diff --git a/libidn2.spec b/libidn2.spec
index fd811a27c7a0520c2d5080e815768eb4f3041413..c334131e75d76af6c3e1ba7e3067a7fa5eb4f176 100644
--- a/libidn2.spec
+++ b/libidn2.spec
@@ -1,7 +1,8 @@
+%define anolis_release .0.1
 Summary:          Library to support IDNA2008 internationalized domain names
 Name:             libidn2
 Version:          2.2.0
-Release:          1%{?dist}
+Release:          1%{anolis_release}%{?dist}
 License:          (GPLv2+ or LGPLv3+) and GPLv3+
 URL:              https://www.gnu.org/software/libidn/#libidn2
 
@@ -14,6 +15,8 @@ BuildRequires:    gettext
 BuildRequires:    libunistring-devel
 Provides:         bundled(gnulib)
 
+Requires:         glibc
+
 %description
 Libidn2 is an implementation of the IDNA2008 specifications in RFC
 5890, 5891, 5892, 5893 and TR46 for internationalized domain names
@@ -36,6 +39,14 @@ Requires:         %{name}%{?_isa} = %{version}-%{release}
 The idn2 package contains the idn2 command line tool for testing
 IDNA2008 conversions.
 
+%package doc
+Summary: Documents for %{name}
+BuildArch: noarch
+Requires: %{name} = %{version}-%{release}
+
+%description doc
+Doc pages for %{name}.
+
 %prep
 %setup -q
 %patch0 -p1 -b .rpath
@@ -72,7 +83,7 @@ make %{?_smp_mflags} -C tests check
 %{_libdir}/%{name}.so.*
 
 %files devel
-%doc doc/%{name}.html examples
+%doc examples
 %{_libdir}/%{name}.so
 %{_libdir}/pkgconfig/%{name}.pc
 %{_includedir}/*.h
@@ -84,7 +95,13 @@ make %{?_smp_mflags} -C tests check
 %{_mandir}/man1/idn2.1*
 %{_infodir}/%{name}.info*
 
+%files doc
+%doc doc/%{name}.html
+
 %changelog
+* Fri Jul 15 2022 Weisson <wenshu.hx@alibaba-inc.com> - 2.2.0-1.0.1
+- Add doc sub package
+
 * Mon Jun 10 2019 Miroslav Lichvar <mlichvar@redhat.com> 2.2.0-1
 - Update to 2.2.0 (#1674201)
 - Drop obsolete scriptlets