diff --git a/libpq.spec b/libpq.spec
index 02c1fff4916bb3d54b5dffc070b7940474970a5e..330454cbe9e5b95ea48cfc12c765c3031383a28f 100644
--- a/libpq.spec
+++ b/libpq.spec
@@ -1,6 +1,6 @@
 Name: libpq
 Version: 11.2
-Release: 3
+Release: 4
 Summary: A share library of PostgreSQL
 License: PostgreSQL
 Url: http://www.postgresql.org/
@@ -21,7 +21,7 @@ or interface.
 
 %package devel
 Summary: Development files for building PostgreSQL client tools
-Requires: libpq%{?_isa} = 11.2-3
+Requires: libpq%{?_isa} = 11.2-3%{?dist}
 Provides: postgresql-devel = 11.2-3
 Obsoletes: postgresql-devel < 11
 %description devel
@@ -70,5 +70,8 @@ cat pg_config-11.lang >>libpq-devel.lst
 %_libdir/pkgconfig/libpq.pc
 
 %changelog
+* Wed Aug 26 2020 chengzihan <chengzihan2@huawei.com> - 11.2-4
+- Fix installing problem of libpq-devel
+
 * Tue Nov 26 2019 openEuler Buildteam <buildteam@openeuler.org> - 11.2-3
 - Package init