diff --git a/libbytesize.spec b/libbytesize.spec
index ca9a5bf..b9b0df6 100644
--- a/libbytesize.spec
+++ b/libbytesize.spec
@@ -3,12 +3,15 @@
 
 Name:           libbytesize
 Version:        1.4
-Release:        4
+Release:        5
 Summary:        A library for working with sizes in bytes
 License:        LGPLv2+
 URL:            https://github.com/storaged-project/libbytesize
 Source0:        https://github.com/storaged-project/libbytesize/releases/download/%{version}/%{name}-%{version}.tar.gz
 BuildRequires:  gcc gmp-devel mpfr-devel pcre-devel gettext-devel libxslt
+%if %{with_python2}
+BuildRequires: python2-devel
+%endif
 %if %{with_python3}
 BuildRequires: python3-devel
 %endif
@@ -87,6 +90,12 @@ find %{buildroot} -type f -name "*.la" -delete
 %{_datadir}/gtk-doc/html/*
 
 %changelog
+* Fri Feb 21 2020 openEuler Buildteam <buildteam@openeuler.org> - 1.4-5
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:add build requires of python2-devel if with python2
+
 * Wed Nov 20 2019 fangyufa<fangyufa1@huawei.com> - 1.4-4
 - Type:bugfix
 - ID:NA