diff --git a/glslang.spec b/glslang.spec
index 90dbc09..dbe590b 100644
--- a/glslang.spec
+++ b/glslang.spec
@@ -52,7 +52,7 @@ pushd build
 popd
 
 %install
-%{cmake_install} -C build
+%{cmake_install}
 
 # we don't want them in here
 rm -rf %{buildroot}%{_includedir}/SPIRV