diff --git a/configurations/bletchley_chassis.json b/configurations/bletchley_chassis.json
index 253b032..d5eb88d 100644
--- a/configurations/bletchley_chassis.json
+++ b/configurations/bletchley_chassis.json
@@ -190,14 +190,14 @@
             "OutLimitMax": 100.0,
             "OutLimitMin": 0.0,
             "Outputs": [
-                "Pwm 1",
-                "Pwm 1",
-                "Pwm 2",
-                "Pwm 2",
-                "Pwm 3",
-                "Pwm 3",
-                "Pwm 4",
-                "Pwm 4"
+                "FAN0_PWM",
+                "FAN0_PWM",
+                "FAN1_PWM",
+                "FAN1_PWM",
+                "FAN2_PWM",
+                "FAN2_PWM",
+                "FAN3_PWM",
+                "FAN3_PWM"
             ],
             "PCoefficient": 0.0,
             "PositiveHysteresis": 0.0,