diff --git a/homeassistant/components/google_assistant/const.py b/homeassistant/components/google_assistant/const.py
index 20c4ab60e88..bf511f8eaeb 100644
--- a/homeassistant/components/google_assistant/const.py
+++ b/homeassistant/components/google_assistant/const.py
@@ -161,6 +161,7 @@ DEVICE_CLASS_TO_GOOGLE_TYPES = {
     (cover.DOMAIN, cover.CoverDeviceClass.GARAGE): TYPE_GARAGE,
     (cover.DOMAIN, cover.CoverDeviceClass.GATE): TYPE_GARAGE,
     (cover.DOMAIN, cover.CoverDeviceClass.SHUTTER): TYPE_SHUTTER,
+    (cover.DOMAIN, cover.CoverDeviceClass.WINDOW): TYPE_WINDOW,
     (
         humidifier.DOMAIN,
         humidifier.HumidifierDeviceClass.DEHUMIDIFIER,
diff --git a/tests/components/google_assistant/test_smart_home.py b/tests/components/google_assistant/test_smart_home.py
index cf83e47b3bf..d0a7df5a863 100644
--- a/tests/components/google_assistant/test_smart_home.py
+++ b/tests/components/google_assistant/test_smart_home.py
@@ -1113,6 +1113,7 @@ async def test_device_class_binary_sensor(
         ("awning", "action.devices.types.AWNING"),
         ("shutter", "action.devices.types.SHUTTER"),
         ("curtain", "action.devices.types.CURTAIN"),
+        ("window", "action.devices.types.WINDOW"),
     ],
 )
 async def test_device_class_cover(