diff --git a/drivers/net/wireless/ath/ath10k/thermal.h b/drivers/net/wireless/ath/ath10k/thermal.h
index b610ea5caae88727bc0adef058da82b92f4624a9..c9223e9e962f1caea4cfe72b05a227efed0ab74a 100644
--- a/drivers/net/wireless/ath/ath10k/thermal.h
+++ b/drivers/net/wireless/ath/ath10k/thermal.h
@@ -36,7 +36,7 @@ struct ath10k_thermal {
 	int temperature;
 };
 
-#ifdef CONFIG_THERMAL
+#if IS_REACHABLE(CONFIG_THERMAL)
 int ath10k_thermal_register(struct ath10k *ar);
 void ath10k_thermal_unregister(struct ath10k *ar);
 void ath10k_thermal_event_temperature(struct ath10k *ar, int temperature);