diff --git a/config/nightly_configs/amip_coarse.yml b/config/nightly_configs/amip_coarse.yml
index ee3c3fbf23..c88dcd743f 100644
--- a/config/nightly_configs/amip_coarse.yml
+++ b/config/nightly_configs/amip_coarse.yml
@@ -20,7 +20,6 @@ netcdf_output_at_levels: true
 output_default_diagnostics: true
 radiation_reset_rng_seed: true
 rayleigh_sponge: true
-smoothing_order: 10
 start_date: "20100101"
 surface_setup: "PrescribedSurface"
 t_end: "732days"
diff --git a/config/nightly_configs/amip_coarse_random.yml b/config/nightly_configs/amip_coarse_random.yml
index 66973a5f33..86e5c9f1ea 100644
--- a/config/nightly_configs/amip_coarse_random.yml
+++ b/config/nightly_configs/amip_coarse_random.yml
@@ -19,7 +19,6 @@ netcdf_interpolation_num_points: [90, 45, 31]
 netcdf_output_at_levels: true
 output_default_diagnostics: true
 rayleigh_sponge: true
-smoothing_order: 10
 start_date: "20100101"
 surface_setup: "PrescribedSurface"
 t_end: "732days"
diff --git a/experiments/ClimaEarth/test/amip_test.yml b/experiments/ClimaEarth/test/amip_test.yml
index 88d31b231c..7c0a1a6674 100644
--- a/experiments/ClimaEarth/test/amip_test.yml
+++ b/experiments/ClimaEarth/test/amip_test.yml
@@ -19,7 +19,6 @@ netcdf_interpolation_num_points: [90, 45, 31]
 netcdf_output_at_levels: true
 output_default_diagnostics: true
 rayleigh_sponge: true
-smoothing_order: 10
 start_date: "20100101"
 surface_setup: "PrescribedSurface"
 t_end: "540secs"