diff --git a/homeassistant/components/dynalite/const.py b/homeassistant/components/dynalite/const.py
index 82d66dba7ba..e5a4e90d1bd 100644
--- a/homeassistant/components/dynalite/const.py
+++ b/homeassistant/components/dynalite/const.py
@@ -1,7 +1,6 @@
 """Constants for the Dynalite component."""
 import logging
 
-from homeassistant.components.cover import DEVICE_CLASS_SHUTTER
 from homeassistant.const import CONF_ROOM
 
 LOGGER = logging.getLogger(__package__)
@@ -36,7 +35,6 @@ CONF_TILT_TIME = "tilt"
 CONF_TIME_COVER = "time_cover"
 
 DEFAULT_CHANNEL_TYPE = "light"
-DEFAULT_COVER_CLASS = DEVICE_CLASS_SHUTTER
 DEFAULT_NAME = "dynalite"
 DEFAULT_PORT = 12345
 DEFAULT_TEMPLATES = {
diff --git a/homeassistant/components/dynalite/cover.py b/homeassistant/components/dynalite/cover.py
index e44fd150f38..0673e07fc0d 100644
--- a/homeassistant/components/dynalite/cover.py
+++ b/homeassistant/components/dynalite/cover.py
@@ -1,12 +1,18 @@
 """Support for the Dynalite channels as covers."""
 from typing import Callable
 
-from homeassistant.components.cover import DEVICE_CLASSES, CoverEntity
+from homeassistant.components.cover import (
+    DEVICE_CLASS_SHUTTER,
+    DEVICE_CLASSES,
+    CoverEntity,
+)
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import HomeAssistant, callback
 
 from .dynalitebase import DynaliteBase, async_setup_entry_base
 
+DEFAULT_COVER_CLASS = DEVICE_CLASS_SHUTTER
+
 
 async def async_setup_entry(
     hass: HomeAssistant, config_entry: ConfigEntry, async_add_entities: Callable
@@ -31,8 +37,10 @@ class DynaliteCover(DynaliteBase, CoverEntity):
     def device_class(self) -> str:
         """Return the class of the device."""
         dev_cls = self._device.device_class
-        assert dev_cls in DEVICE_CLASSES
-        return dev_cls
+        ret_val = DEFAULT_COVER_CLASS
+        if dev_cls in DEVICE_CLASSES:
+            ret_val = dev_cls
+        return ret_val
 
     @property
     def current_cover_position(self) -> int: