diff --git a/glslang.spec b/glslang.spec
index c98f3b930cbf2a52d166b668adc3c28756bcb286..a65c157c4f40aa9940fb8a381b365f10b3a90e04 100644
--- a/glslang.spec
+++ b/glslang.spec
@@ -17,6 +17,7 @@ BuildRequires:  cmake3
 BuildRequires:  gcc-c++
 BuildRequires:  ninja-build
 BuildRequires:  spirv-tools-devel
+BuildRequires:  python3
 
 %description
 %{name} is the official reference compiler front end for the OpenGL
@@ -50,12 +51,12 @@ rm -rf %{buildroot}%{_includedir}/SPIRV
 %ifnarch s390x ppc64
 %check
 pushd Test
-./runtests localResults ../%{_vpath_builddir}/StandAlone/glslangValidator ../%{_vpath_builddir}/StandAlone/spirv-remap
+./runtests localResults ../StandAlone/glslangValidator ../StandAlone/spirv-remap
 popd
 %endif
 
 # Install libglslang-default-resource-limits.a
-install -pm 0644 %{_vpath_builddir}/StandAlone/libglslang-default-resource-limits.a %{buildroot}%{_libdir}/
+install -pm 0644 StandAlone/libglslang-default-resource-limits.a %{buildroot}%{_libdir}/
 
 %files
 %doc README.md README-spirv-remap.txt