diff --git a/control/gen-fan-zone-defs.py b/control/gen-fan-zone-defs.py
index 20c1534..eb33956 100755
--- a/control/gen-fan-zone-defs.py
+++ b/control/gen-fan-zone-defs.py
@@ -49,6 +49,7 @@
             ZoneDefinition{
                 ${zone['num']},
                 ${zone['full_speed']},
+                ${zone['default_floor']},
                 std::vector<FanDefinition>{
                 %for fan in zone['fans']:
                     FanDefinition{
@@ -294,6 +295,8 @@
 
             zone['full_speed'] = z['full_speed']
 
+            zone['default_floor'] = z['default_floor']
+
             # 'cooling_profiles' is optional (use 'all' instead)
             if ('cooling_profiles' not in z) or \
                     (z['cooling_profiles'] is None):