diff --git a/configs/cfe_config_laramie_pass_aet_rz.txt b/configs/cfe_config_laramie_pass_aet_rz.txt
index 96ebbc1..d382803 100644
--- a/configs/cfe_config_laramie_pass_aet_rz.txt
+++ b/configs/cfe_config_laramie_pass_aet_rz.txt
@@ -23,6 +23,6 @@ K_nash_surface=0.83089
 nsubsteps_nash_surface=10
 nash_storage_surface=0.0,0.0
 surface_water_partitioning_scheme=Schaake
-aet_rootzone=true
+is_aet_rootzone=true
 soil_layer_depths=0.1,0.4,1.0,2.0
 max_rootzone_layer=2