diff --git a/source/_integrations/water_heater.markdown b/source/_integrations/water_heater.markdown
index 9d732787720..dfd39b17689 100644
--- a/source/_integrations/water_heater.markdown
+++ b/source/_integrations/water_heater.markdown
@@ -3,6 +3,7 @@ title: Water Heater
 description: Instructions on how to setup water heater devices within Home Assistant.
 ha_release: 0.81
 ha_domain: water_heater
+ha_iot_class: ~
 ---
 
 The `water_heater` integration is built for the controlling and monitoring of hot water heaters.