diff --git a/mandoc.spec b/mandoc.spec
index baacc1e8da0c7c35cf6fb768470a0f66d954951c..a17f344331ad208bfb43338b8d2ed9abd2757abc 100644
--- a/mandoc.spec
+++ b/mandoc.spec
@@ -1,6 +1,6 @@
 Name:             mandoc
 Version:          1.14.6
-Release:          5
+Release:          6
 Summary:          A suite of tools for compiling mdoc and man
 
 License:          ISC
@@ -10,7 +10,6 @@ Patch0:           0001-add-compile-option.patch
 
 BuildRequires:    gcc
 BuildRequires:    make
-BuildRequires:    clang
 BuildRequires:    zlib-devel
 
 # requirements for %%check
@@ -75,7 +74,7 @@ echo 'CFLAGS="%{optflags} -fPIC -Werror=implicit-function-declaration"' >> confi
 %else
 echo 'CFLAGS="%{optflags} -fPIC"' >> configure.local
 %endif
-export CC=clang
+%set_build_cc
 ./configure
 %make_build
 
@@ -178,6 +177,9 @@ fi
 %{_mandir}/man3/tbl.3*
 
 %changelog
+* Sun Nov 17 2024 Funda Wang <fundawang@yeah.net> - 1.14.6-6
+- do not force clang as cc, it is using different optflags than gcc now
+
 * Mon Apr 22 2024 lilong <lilong@kylinos.cn> - 1.14.6-5
 - Fix low-level dependency compilation failure