diff --git a/builds/linux-build.bash b/builds/linux-build.bash
index 0d51371af..bec87b522 100755
--- a/builds/linux-build.bash
+++ b/builds/linux-build.bash
@@ -98,7 +98,7 @@ if [[ $flavor =~ "mom6sis2" ]] ; then
     $srcdir/mkmf/bin/list_paths $srcdir/MOM6/{config_src/infra/FMS2,config_src/memory/dynamic_symmetric,config_src/drivers/FMS_cap,config_src/external/ODA_hooks,config_src/external/database_comms,config_src/external/drifters,config_src/external/stochastic_physics,pkg/GSW-Fortran/{modules,toolbox}/,src/{*,*/*}/} $srcdir/SIS2/{config_src/dynamic_symmetric,config_src/external/Icepack_interfaces,src} $srcdir/icebergs/src $srcdir/FMS/{coupler,include}/ $srcdir/{ocean_BGC/generic_tracers,ocean_BGC/mocsy/src}/ $srcdir/{atmos_null,ice_param,land_null,coupler/shared/,coupler/full/}/
 
 
-compiler_options='-DINTERNAL_FILE_NML -DMAX_FIELDS_=600 -DNOT_SET_AFFINITY -D_USE_MOM6_DIAG -D_USE_GENERIC_TRACER -DUSE_PRECISION=2 -D_USE_LEGACY_LAND_ -Duse_AM3_physics'
+compiler_options='-DINTERNAL_FILE_NML -DUSE_FMS2_IO -DMAX_FIELDS_=600 -DNOT_SET_AFFINITY -D_USE_MOM6_DIAG -D_USE_GENERIC_TRACER -DUSE_PRECISION=2 -D_USE_LEGACY_LAND_ -Duse_AM3_physics'
 linker_options=''
 if [[ "$target" =~ "stdpar" ]] ; then 
     compiler_options="$compiler_options -stdpar -Minfo=accel"
diff --git a/exps/NWA12.COBALT/input.nml b/exps/NWA12.COBALT/input.nml
index b484b27d6..f7c9cc5c8 100644
--- a/exps/NWA12.COBALT/input.nml
+++ b/exps/NWA12.COBALT/input.nml
@@ -52,7 +52,7 @@
         mix_snapshot_average_fields=.false.
 /
 
- &fms_io_nml
+ &fms2_io_nml
         fms_netcdf_restart=.true. 
         threading_read='multi'
         max_files_r = 800
diff --git a/exps/OM4.single_column.COBALT/input.nml b/exps/OM4.single_column.COBALT/input.nml
index 052b581b8..93ebdffbb 100644
--- a/exps/OM4.single_column.COBALT/input.nml
+++ b/exps/OM4.single_column.COBALT/input.nml
@@ -60,7 +60,7 @@
             do_area_weighted_flux = .FALSE.
 /
 
- &fms_io_nml
+ &fms2_io_nml
             fms_netcdf_restart=.true.
             threading_read='multi'
             max_files_r = 800