diff --git a/ads131m08/sensor_rms/__init__.py b/ads131m08/sensor_rms/__init__.py
index 009a072..1ef942e 100644
--- a/ads131m08/sensor_rms/__init__.py
+++ b/ads131m08/sensor_rms/__init__.py
@@ -11,7 +11,7 @@ from esphome.const import (
 )
 from .. import  CONF_ADS131M08_ID, ads131m08_ns
 
-CONF_AC = "ac_1"
+CONF_AC = "ac"
 CONF_DC = "dc"
 ICON_CURRENT_DC = "mdi:current-dc"
 MAX_CHANNELS = 12