diff --git a/mache/machines/chicoma-cpu.cfg b/mache/machines/chicoma-cpu.cfg
index 320b3082..427de5ac 100644
--- a/mache/machines/chicoma-cpu.cfg
+++ b/mache/machines/chicoma-cpu.cfg
@@ -5,23 +5,10 @@
 # the unix group for permissions for the e3sm-unified conda environment
 group = climate
 
-# the compiler set to use for system libraries and MPAS builds
-compiler = gnu
-
-# the system MPI library to use for intel18 compiler
-mpi = mpich
-
 # the path to the directory where activation scripts, the base environment, and
 # system libraries will be deployed
 base_path = /usr/projects/e3sm/e3sm-unified
 
-# whether to use E3SM modules for hdf5, netcdf-c, netcdf-fortran and pnetcdf
-# (spack modules are used otherwise)
-use_e3sm_hdf5_netcdf = True
-
-# location of a spack mirror for E3SM-Unified to use
-spack_mirror = /usr/projects/e3sm/e3sm-unified/spack/spack_mirror
-
 
 # config options related to data needed by diagnostics software such as
 # e3sm_diags and MPAS-Analysis