diff --git a/zhaquirks/philips/soc001.py b/zhaquirks/philips/soc001.py
index 6742c37718..1a922dad14 100644
--- a/zhaquirks/philips/soc001.py
+++ b/zhaquirks/philips/soc001.py
@@ -72,7 +72,7 @@ class AttributeDefs(BaseAttributeDefs):
         PhilipsContactCluster.cluster_id,
         endpoint_id=2,
         device_class=BinarySensorDeviceClass.OPENING,
-        EntityType=EntityType.STANDARD,
+        entity_type=EntityType.STANDARD,
         fallback_name="Contact",
     )
     .binary_sensor(