diff --git a/config/longrun_configs/amip_target_topo_diagedmf.yml b/config/longrun_configs/amip_target_topo_diagedmf.yml
index 7fa44a990..ea71b19c2 100644
--- a/config/longrun_configs/amip_target_topo_diagedmf.yml
+++ b/config/longrun_configs/amip_target_topo_diagedmf.yml
@@ -23,3 +23,4 @@ t_end: "40days"
 topo_smoothing: true
 topography: "Earth"
 turb_flux_partition: "CombinedStateFluxes"
+use_reference_state: false