diff --git a/components/driver/deprecated/rtc_temperature_legacy.c b/components/driver/deprecated/rtc_temperature_legacy.c
index e2be0a3fd3..c821b17f59 100644
--- a/components/driver/deprecated/rtc_temperature_legacy.c
+++ b/components/driver/deprecated/rtc_temperature_legacy.c
@@ -126,7 +126,7 @@ static esp_err_t read_delta_t_from_efuse(void)
     return ESP_OK;
 }
 
-static float parse_temp_sensor_raw_value(uint32_t tsens_raw)
+static float parse_temp_sensor_raw_value(int16_t tsens_raw)
 {
     if (isnan(s_deltaT)) { //suggests that the value is not initialized
         read_delta_t_from_efuse();
@@ -145,7 +145,7 @@ esp_err_t temp_sensor_read_celsius(float *celsius)
     temp_sensor_config_t tsens;
     temp_sensor_get_config(&tsens);
     bool range_changed;
-    uint16_t tsens_out = temp_sensor_get_raw_value(&range_changed);
+    int16_t tsens_out = temp_sensor_get_raw_value(&range_changed);
     *celsius = parse_temp_sensor_raw_value(tsens_out);
     if (*celsius < TEMPERATURE_SENSOR_LL_MEASURE_MIN || *celsius > TEMPERATURE_SENSOR_LL_MEASURE_MAX) {
         ESP_LOGE(TAG, "Exceeding temperature measure range.");
diff --git a/components/driver/temperature_sensor.c b/components/driver/temperature_sensor.c
index 7c395f9c80..7f156dff94 100644
--- a/components/driver/temperature_sensor.c
+++ b/components/driver/temperature_sensor.c
@@ -185,7 +185,7 @@ static esp_err_t read_delta_t_from_efuse(void)
     return ESP_OK;
 }
 
-static float parse_temp_sensor_raw_value(uint32_t tsens_raw)
+static float parse_temp_sensor_raw_value(int16_t tsens_raw)
 {
     if (isnan(s_deltaT)) { //suggests that the value is not initialized
         read_delta_t_from_efuse();
@@ -201,7 +201,7 @@ esp_err_t temperature_sensor_get_celsius(temperature_sensor_handle_t tsens, floa
     ESP_RETURN_ON_FALSE(tsens->fsm == TEMP_SENSOR_FSM_ENABLE, ESP_ERR_INVALID_STATE, TAG, "tsens not enabled yet");
 
     bool range_changed;
-    uint16_t tsens_out = temp_sensor_get_raw_value(&range_changed);
+    int16_t tsens_out = temp_sensor_get_raw_value(&range_changed);
     *out_celsius = parse_temp_sensor_raw_value(tsens_out);
 
     if (*out_celsius < TEMPERATURE_SENSOR_LL_MEASURE_MIN || *out_celsius > TEMPERATURE_SENSOR_LL_MEASURE_MAX) {