diff --git a/coordinator/iocontrol.lua b/coordinator/iocontrol.lua
index 58aed0e..f44becb 100644
--- a/coordinator/iocontrol.lua
+++ b/coordinator/iocontrol.lua
@@ -164,7 +164,7 @@ function iocontrol.init(conf, comms, temp_scale, energy_scale)
             num_turbines = 0,
             num_snas = 0,
             has_tank = conf.cooling.r_cool[i].TankConnection,
-            aux_cool = conf.cooling.aux_coolant[i],
+            aux_coolant = conf.cooling.aux_coolant[i],
 
             status_lines = { "", "" },
 
diff --git a/coordinator/ui/components/unit_flow.lua b/coordinator/ui/components/unit_flow.lua
index 3a6f47b..f9e0fc8 100644
--- a/coordinator/ui/components/unit_flow.lua
+++ b/coordinator/ui/components/unit_flow.lua
@@ -97,14 +97,14 @@ local function make(parent, x, y, wide, unit_id)
         table.insert(rc_pipes, pipe(_wide(46, 39), 1, _wide(72, 58), 1, colors.blue, true))
         table.insert(rc_pipes, pipe(_wide(46, 39), 3, _wide(72, 58), 3, colors.white, true))
 
-        if unit.aux_cool then
+        if unit.aux_coolant then
             table.insert(rc_pipes, pipe(_wide(51, 41), 0, _wide(51, 41), 1, colors.blue, true))
         end
     else
         table.insert(rc_pipes, pipe(0, 1, _wide(72, 58), 1, colors.blue, true))
         table.insert(rc_pipes, pipe(0, 3, _wide(72, 58), 3, colors.white, true))
 
-        if unit.aux_cool then
+        if unit.aux_coolant then
             table.insert(rc_pipes, pipe(8, 0, 8, 1, colors.blue, true))
         end
     end
diff --git a/coordinator/ui/layout/flow_view.lua b/coordinator/ui/layout/flow_view.lua
index 5616406..4d1c18f 100644
--- a/coordinator/ui/layout/flow_view.lua
+++ b/coordinator/ui/layout/flow_view.lua
@@ -299,7 +299,7 @@ local function init(main)
     ------------------------------
 
     for i = 1, facility.num_units do
-        if units[i].aux_cool then
+        if units[i].aux_coolant then
             local vx
             local vy = 3 + y_ofs(i)