diff --git a/mache/spack/frontier_amdclanggpu_mpich.csh b/mache/spack/frontier_amdclanggpu_mpich.csh
index 2263712..279c55e 100644
--- a/mache/spack/frontier_amdclanggpu_mpich.csh
+++ b/mache/spack/frontier_amdclanggpu_mpich.csh
@@ -19,3 +19,4 @@ setenv NETCDF_FORTRAN_PATH $CRAY_NETCDF_HDF5PARALLEL_PREFIX
 setenv PNETCDF_PATH $CRAY_PARALLEL_NETCDF_PREFIX
 {% endif %}
 setenv HDF5_USE_FILE_LOCKING FALSE
+setenv MPICH_GPU_SUPPORT_ENABLED 1
diff --git a/mache/spack/frontier_amdclanggpu_mpich.sh b/mache/spack/frontier_amdclanggpu_mpich.sh
index 7627631..a9ee68e 100644
--- a/mache/spack/frontier_amdclanggpu_mpich.sh
+++ b/mache/spack/frontier_amdclanggpu_mpich.sh
@@ -19,3 +19,4 @@ export NETCDF_FORTRAN_PATH=$CRAY_NETCDF_HDF5PARALLEL_PREFIX
 export PNETCDF_PATH=$CRAY_PARALLEL_NETCDF_PREFIX
 {% endif %}
 export HDF5_USE_FILE_LOCKING=FALSE
+export MPICH_GPU_SUPPORT_ENABLED=1
diff --git a/mache/spack/frontier_crayclanggpu_mpich.csh b/mache/spack/frontier_crayclanggpu_mpich.csh
index 73a199a..d2722bc 100644
--- a/mache/spack/frontier_crayclanggpu_mpich.csh
+++ b/mache/spack/frontier_crayclanggpu_mpich.csh
@@ -21,3 +21,4 @@ setenv NETCDF_FORTRAN_PATH $CRAY_NETCDF_HDF5PARALLEL_PREFIX
 setenv PNETCDF_PATH $CRAY_PARALLEL_NETCDF_PREFIX
 {% endif %}
 setenv HDF5_USE_FILE_LOCKING FALSE
+setenv MPICH_GPU_SUPPORT_ENABLED 1
diff --git a/mache/spack/frontier_crayclanggpu_mpich.sh b/mache/spack/frontier_crayclanggpu_mpich.sh
index 5242702..c0e4a68 100644
--- a/mache/spack/frontier_crayclanggpu_mpich.sh
+++ b/mache/spack/frontier_crayclanggpu_mpich.sh
@@ -21,3 +21,4 @@ export NETCDF_FORTRAN_PATH=$CRAY_NETCDF_HDF5PARALLEL_PREFIX
 export PNETCDF_PATH=$CRAY_PARALLEL_NETCDF_PREFIX
 {% endif %}
 export HDF5_USE_FILE_LOCKING=FALSE
+export MPICH_GPU_SUPPORT_ENABLED=1
diff --git a/mache/spack/frontier_gnugpu_mpich.csh b/mache/spack/frontier_gnugpu_mpich.csh
index 75d4789..ef9dcb2 100644
--- a/mache/spack/frontier_gnugpu_mpich.csh
+++ b/mache/spack/frontier_gnugpu_mpich.csh
@@ -20,3 +20,4 @@ setenv NETCDF_FORTRAN_PATH $CRAY_NETCDF_HDF5PARALLEL_PREFIX
 setenv PNETCDF_PATH $CRAY_PARALLEL_NETCDF_PREFIX
 {% endif %}
 setenv HDF5_USE_FILE_LOCKING FALSE
+setenv MPICH_GPU_SUPPORT_ENABLED 1
diff --git a/mache/spack/frontier_gnugpu_mpich.sh b/mache/spack/frontier_gnugpu_mpich.sh
index 63db8a3..eda5278 100644
--- a/mache/spack/frontier_gnugpu_mpich.sh
+++ b/mache/spack/frontier_gnugpu_mpich.sh
@@ -20,3 +20,4 @@ export NETCDF_FORTRAN_PATH=$CRAY_NETCDF_HDF5PARALLEL_PREFIX
 export PNETCDF_PATH=$CRAY_PARALLEL_NETCDF_PREFIX
 {% endif %}
 export HDF5_USE_FILE_LOCKING=FALSE
+export MPICH_GPU_SUPPORT_ENABLED=1