diff --git a/clang.spec b/clang.spec
index 90bfdbb1438c8bbe86ece79e30f25d94e4e6ee0d..c02bb2b394d7a982b77915ddee5927fdf16c1ce0 100644
--- a/clang.spec
+++ b/clang.spec
@@ -1,7 +1,7 @@
 %bcond_without sys_llvm
 %bcond_without check
 %bcond_with classic_flang
-%bcond_without toolchain_clang
+%bcond_with toolchain_clang
 %bcond_without bisheng_autotuner
 
 %if %{with toolchain_clang}
@@ -43,7 +43,7 @@
 
 Name:		%{pkg_name}
 Version:	%{clang_version}
-Release:	19
+Release:	20
 Summary:	A C language family front-end for LLVM
 
 License:	NCSA
@@ -412,6 +412,9 @@ LD_LIBRARY_PATH=%{buildroot}/%{install_libdir}  %{__ninja} check-all -C ./_build
 %{install_bindir}/git-clang-format
 
 %changelog
+* Tue Jul 30 2024 liyunfei <liyunfei33@huawei.com> - 17.0.6-5
+- Disable toolchain_clang build for BiSheng Autotuner support temporary.
+
 * Tue Jul 16 2024 liyunfei <liyunfei33@huawei.com> - 17.0.6-19
 - Add BiSheng Autotuner support.