diff --git a/config/longrun_configs/longrun_aquaplanet_rhoe_equil_gray_55km_nz63_0M.yml b/config/longrun_configs/longrun_aquaplanet_rhoe_equil_gray_55km_nz63_0M.yml
index 66607bbe67..3016acb30e 100644
--- a/config/longrun_configs/longrun_aquaplanet_rhoe_equil_gray_55km_nz63_0M.yml
+++ b/config/longrun_configs/longrun_aquaplanet_rhoe_equil_gray_55km_nz63_0M.yml
@@ -5,6 +5,8 @@ h_elem: 16
 z_max: 55000.0
 rayleigh_sponge: true
 z_elem: 63
+dz_bottom: 30.0
+dz_top: 3000.0
 vert_diff: "true" 
 kappa_4: 2e16
 surface_setup: "DefaultExchangeCoefficients"