diff --git a/esphome/fdm-exhaust-fan-control.yaml b/esphome/fdm-exhaust-fan-control.yaml
index 90bdd6e..8cc0a6a 100644
--- a/esphome/fdm-exhaust-fan-control.yaml
+++ b/esphome/fdm-exhaust-fan-control.yaml
@@ -37,10 +37,14 @@ web_server:
 
 output:
   - platform: gpio
-    pin: GPIO3
+    pin: 
+      number: GPIO3
+      inverted: true  # Fix for driver inversion
     id: fan_80mm_output
   - platform: gpio
-    pin: GPIO4
+    pin: 
+      number: GPIO4
+      inverted: true
     id: fan_120mm_output
 
 fan: