diff --git a/include/aio.h b/include/aio.h
index a653a95..711a073 100644
--- a/include/aio.h
+++ b/include/aio.h
@@ -44,9 +44,9 @@ struct aio_t {
 	libusb_device_handle* handle;
 	enum aio_pump_mode_t pump_mode;
 	float water_temp;
-	float t_q;
-	float t_b;
-	float t_e;
+	float t_quiet;
+	float t_balanced;
+	float t_extreme;
 	uint16_t pump_speed;
 	uint16_t fan_speed[2];
 };
diff --git a/src/aio.c b/src/aio.c
index 7bb45a1..50d19c9 100644
--- a/src/aio.c
+++ b/src/aio.c
@@ -137,9 +137,9 @@ void aio_detect(struct aio_t *aio) {
 		return;
 	}
 
-	aio->t_q = 36.5f;
-	aio->t_b = 38.5f;
-	aio->t_e = 41.0f;
+	aio->t_quiet = 36.5f;
+	aio->t_balanced = 38.5f;
+	aio->t_extreme = 41.0f;
 
 	const struct curve_point_t fan_curve[] = {
 		{ 34, SPD2DTY(0)},
@@ -172,13 +172,13 @@ void aio_update(struct aio_t *aio) {
 	aio->pump_mode = aio_get_pump_mode(aio->handle);
 	aio_get_fan_speed(aio->handle, aio->fan_speed);
 
-	if ((aio->pump_mode == QUIET && aio->water_temp > aio->t_b) || (aio->pump_mode == EXTREME && aio->water_temp < aio->t_b))
+	if ((aio->pump_mode == QUIET && aio->water_temp > aio->t_balanced) || (aio->pump_mode == EXTREME && aio->water_temp < aio->t_balanced))
 		aio_set_pump_mode(aio->handle, BALANCED);
 
 	if (aio->pump_mode == BALANCED) {
-		if (aio->water_temp > aio->t_e)
+		if (aio->water_temp > aio->t_extreme)
 			aio_set_pump_mode(aio->handle, EXTREME);
-		if (aio->water_temp < aio->t_q)
+		if (aio->water_temp < aio->t_quiet)
 			aio_set_pump_mode(aio->handle, QUIET);
 	}