diff --git a/env/merlin/HyQuas/spack.yaml b/env/merlin/HyQuas/spack.yaml
index 0317998..02b27d4 100644
--- a/env/merlin/HyQuas/spack.yaml
+++ b/env/merlin/HyQuas/spack.yaml
@@ -11,7 +11,7 @@ spack:
   - openmpi@4.0.5%gcc+cuda fabrics=ucx,xpmem,knem,ofi,cma schedulers=slurm ^ucx@1.13.0
     ^hwloc@2.7.1 ^knem@1.1.4 ^xpmem@2.6.3 ^pmix@4.1.2
   - cuda@11.0.2
-  - hyquas@main%gcc+cuda cuda_arch=70 +mpi+schedule+use_double+micro_bench+eval_pp~disable_assert
+  - hyquas@main%gcc+cuda cuda_arch=70 ~mpi+schedule+use_double+micro_bench+eval_pp~disable_assert
     backend=mix mat_size=7 ^cuda@11.0.2
   develop:
     hyquas: