diff --git a/pigz.spec b/pigz.spec
index 2fe0ce7..4c16cf3 100644
--- a/pigz.spec
+++ b/pigz.spec
@@ -1,7 +1,7 @@
-#spec from tarball
+#spec from source code(%{name}-%{version}.tar.gz)
 Name:     pigz
 Version:  2.4
-Release:  6
+Release:  7
 Summary:  pigz is a parallel implementation of gzip which utilizes multiple cores
 License:  zlib
 Source0:  http://www.zlib.net/%{name}/%{name}-%{version}.tar.gz
@@ -40,6 +40,12 @@ make test
 %{_mandir}/man1/pigz.1*
 
 %changelog
+* Wed Dec 4 2019 shenyangyang<shenyangyang4@huawei.com> - 2.4-7
+- Type: enhancement
+- ID: NA
+- SUG: NA
+- DESC: modify comments
+
 * Wed Oct 9 2019 shenyangyang<shenyangyang4@huawei.com> - 2.4-6
 - Type:enhancement
 - ID:NA