diff --git a/mesa.spec b/mesa.spec
index ae4350d..3bed538 100644
--- a/mesa.spec
+++ b/mesa.spec
@@ -359,7 +359,7 @@ export RUSTFLAGS="%build_rustflags"
   -Dgallium-nine=%{?with_nine:true}%{!?with_nine:false} \
   -Dgallium-opencl=%{?with_opencl:icd}%{!?with_opencl:disabled} \
 %if 0%{?with_opencl}
-  -Dgallium-rusticl=true -Dllvm=enabled -Drust_std=2021 \
+  -Dgallium-rusticl=true \
 %endif
   -Dvulkan-drivers=%{?vulkan_drivers} \
   -Dvulkan-layers=device-select \