diff --git a/ci/cscs-ci.yml b/ci/cscs-ci.yml
index 99817c395a..11ce4f126d 100644
--- a/ci/cscs-ci.yml
+++ b/ci/cscs-ci.yml
@@ -110,8 +110,7 @@ build_py310_image_aarch64:
   image: $CSCS_REGISTRY_PATH/public/$ARCH/gt4py/gt4py-ci:$CI_COMMIT_SHA-$PYVERSION
   script:
   - cd /gt4py.src
-  - python -c "import cupy"
-  - nox -e test_$SUBPACKAGE-${PYVERSION%.?*}$VARIANT$SUBVARIANT$DETAIL
+  - nox -e test_$SUBPACKAGE-${PYVERSION%.[0-9]*}$VARIANT$SUBVARIANT$DETAIL
   variables:
     CRAY_CUDA_MPS: 1
     SLURM_JOB_NUM_NODES: 1
@@ -135,12 +134,12 @@ build_py310_image_aarch64:
   parallel:
     matrix:
     - SUBPACKAGE: [cartesian]
-      VARIANT: ['(internal', '(dace']
+      VARIANT: ['(internal\,', '(dace,']
       SUBVARIANT: ['cuda12)', 'cpu)']
     - SUBPACKAGE: eve
     - SUBPACKAGE: next
-      VARIANT: ['(internal', '(dace']
-      SUBVARIANT: ['cuda12', 'cpu']
+      VARIANT: ['(internal,', '(dace,,']
+      SUBVARIANT: ['cuda12\,', 'cpu\,']
       DETAIL: ['nomesh)', 'atlas)']
     - SUBPACKAGE: [storage]
       VARIANT: ['(cuda12)', '(cpu)']