diff --git a/config/kernel/linux-thead-legacy.config b/config/kernel/linux-thead-legacy.config
index c50a873f6d..00182755fb 100644
--- a/config/kernel/linux-thead-legacy.config
+++ b/config/kernel/linux-thead-legacy.config
@@ -2270,7 +2270,7 @@ CONFIG_SENSORS_MR75203=y
 # CONFIG_SENSORS_NPCM7XX is not set
 # CONFIG_SENSORS_PCF8591 is not set
 # CONFIG_PMBUS is not set
-# CONFIG_SENSORS_PWM_FAN is not set
+CONFIG_SENSORS_PWM_FAN=y
 # CONFIG_SENSORS_SHT15 is not set
 # CONFIG_SENSORS_SHT21 is not set
 # CONFIG_SENSORS_SHT3x is not set