diff --git a/env/merlin/all/spack.yaml b/env/merlin/all/spack.yaml
index 5fff76d..3ff158e 100644
--- a/env/merlin/all/spack.yaml
+++ b/env/merlin/all/spack.yaml
@@ -568,6 +568,7 @@ spack:
   - matrix:
     - [cp2k@9.1]
     - ['%oneapi']
+    - [$python]
   - matrix:
     - [relion +cuda cuda_arch=61]
     - ['%pgi']
@@ -575,6 +576,7 @@ spack:
     - [^openmpi%pgi]
     - [^openblas]
     - [^llvm%gcc@8.3.0]
+    - [$python]
   view:
     Batchsystem:
       link: all