diff --git a/libunwind.spec b/libunwind.spec
index 0fbd90d5a6e492cb2fe4ceb3618101b3d87af7fc..6dae0ab45f039b4bb2de8fd08d98b73699281567 100644
--- a/libunwind.spec
+++ b/libunwind.spec
@@ -1,4 +1,4 @@
-%define anolis_release 1
+%define anolis_release 2
 Summary: An unwinding library
 Name: libunwind
 Version: 1.6.2
@@ -18,6 +18,14 @@ BuildRequires: make
 %description
 Libunwind provides a C ABI to determine the call-chain of a program.
 
+%package doc
+Summary:        Documentation files for %{name}
+Requires:       %{name} = %{version}-%{release}
+BuildArch:      noarch
+
+%description    doc
+The %{name}-doc package contains documentation files for %{name}.
+
 %package devel
 Summary: Development package for libunwind
 Requires: libunwind = %{version}-%{release}
@@ -67,9 +75,11 @@ echo ====================TESTSUITE DISABLED=========================
 
 %files
 %license COPYING
-%doc README NEWS
 %{_libdir}/libunwind*.so.*
 
+%files doc
+%doc README NEWS
+
 %files devel
 %{_libdir}/libunwind*.so
 %{_libdir}/libunwind-ptrace.a
@@ -80,6 +90,9 @@ echo ====================TESTSUITE DISABLED=========================
 %{_includedir}/libunwind*.h
 
 %changelog
+* Thu Sep 29 2022 mgb01105731 <mgb01105731@alibaba-inc.com> - 1.6.2-2
+- add doc package
+
 * Thu Apr 07 2022 mgb01105731 <mgb01105731@alibaba-inc.com> - 1.6.2-1
 - Init from upstream version 1.6.2