diff --git a/custom_components/poolmath/const.py b/custom_components/poolmath/const.py
index 98a225e..408e867 100644
--- a/custom_components/poolmath/const.py
+++ b/custom_components/poolmath/const.py
@@ -5,7 +5,6 @@
 
 ATTRIBUTION = "Data by PoolMath (Trouble Free Pool)"
 
-ATTR_ATTRIBUTION = "attribution"
 ATTR_DESCRIPTION = "description"
 ATTR_LAST_UPDATED_TIME = "last_updated"
 ATTR_TARGET_MIN = "target_min"
diff --git a/custom_components/poolmath/sensor.py b/custom_components/poolmath/sensor.py
index b14caab..d0e16ab 100644
--- a/custom_components/poolmath/sensor.py
+++ b/custom_components/poolmath/sensor.py
@@ -3,6 +3,7 @@
 
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
+    ATTR_ATTRIBUTION,
     ATTR_NAME,
     ATTR_UNIT_OF_MEASUREMENT,
     CONF_NAME,
@@ -17,7 +18,6 @@
 
 from .client import PoolMathClient
 from .const import (
-    ATTR_ATTRIBUTION,
     ATTR_LAST_UPDATED_TIME,
     ATTR_TARGET_SOURCE,
     ATTRIBUTION,