diff --git a/libbytesize.spec b/libbytesize.spec
index 0ab70e6..eed211b 100644
--- a/libbytesize.spec
+++ b/libbytesize.spec
@@ -3,12 +3,12 @@
 
 Name:           libbytesize
 Version:        1.4
-Release:        6
+Release:        7
 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
+BuildRequires:  gcc gmp-devel mpfr-devel pcre-devel gettext-devel libxslt gdb
 %if %{with_python2}
 BuildRequires: python2-devel
 %endif
@@ -77,6 +77,8 @@ find %{buildroot} -type f -name "*.la" -delete
 %files -n python2-bytesize
 %defattr(-,root,root)
 %{_libdir}/python2*/site-packages/*
+%else
+%exclude %{_libdir}/python2*/site-packages/*
 %endif
 
 %if %{with_python3}
@@ -90,6 +92,9 @@ find %{buildroot} -type f -name "*.la" -delete
 %{_datadir}/gtk-doc/html/*
 
 %changelog
+* Sat Mar 14 2020 openEuler Buildteam <buildteam@openeuler.org> - 1.4-7
+- fixbug in self-building
+
 * Sat Feb 22 2020 openEuler Buildteam <buildteam@openeuler.org> - 1.4-6
 - Type:bugfix
 - ID:NA