diff --git a/custom_components/o365/sensor.py b/custom_components/o365/sensor.py
index 1cf14d1..616f4c2 100644
--- a/custom_components/o365/sensor.py
+++ b/custom_components/o365/sensor.py
@@ -11,6 +11,7 @@
     ATTR_CHAT_ID,
     ATTR_CONTENT,
     ATTR_FROM_DISPLAY_NAME,
+    ATTR_ICON,
     ATTR_IMPORTANCE,
     ATTR_SUBJECT,
     ATTR_SUMMARY,
@@ -266,6 +267,14 @@ def state(self):
         """Sensor state."""
         return self._state
 
+    @property
+    def extra_state_attributes(self):
+        """Return entity specific state attributes."""
+        attributes = {
+            ATTR_ICON: "mdi:microsoft-teams",
+        }
+        return attributes
+
     async def async_update(self):
         """Update state."""
         data = await self.hass.async_add_executor_job(self._teams.get_my_presence)