diff --git a/tbb.spec b/tbb.spec
index e69ba46..0992ea8 100644
--- a/tbb.spec
+++ b/tbb.spec
@@ -163,8 +163,8 @@ mkdir -p %{buildroot}%{_libdir}/cmake/TBB
 cmake -DTBB_ROOT=. -DTBB_OS=Linux -DSAVE_TO=. -P cmake/tbb_config_generator.cmake
 # Fix library path
 sed -i s,"get_filename_component(_tbb_lib_path.*","get_filename_component(_tbb_lib_path %{_libdir} ABSOLUTE)", TBBConfig.cmake
-install -m 0644 TBBConfig.cmake %{buildroot}%{_libdir}/cmake/TBB
-install -m 0644 TBBConfigVersion.cmake %{buildroot}%{_libdir}/cmake/TBB
+install -pm 0644 TBBConfig.cmake %{buildroot}%{_libdir}/cmake/TBB
+install -pm 0644 TBBConfigVersion.cmake %{buildroot}%{_libdir}/cmake/TBB
 
 %if %{with python2}
 pushd python