diff --git a/homeassistant/components/plex/icons.json b/homeassistant/components/plex/icons.json
new file mode 100644
index 00000000000..03bc835d2f6
--- /dev/null
+++ b/homeassistant/components/plex/icons.json
@@ -0,0 +1,13 @@
+{
+  "entity": {
+    "sensor": {
+      "plex": {
+        "default": "mdi:plex"
+      }
+    }
+  },
+  "services": {
+    "refresh_library": "mdi:refresh",
+    "scan_for_clients": "mdi:database-refresh"
+  }
+}
diff --git a/homeassistant/components/plex/sensor.py b/homeassistant/components/plex/sensor.py
index acc309ab14c..350e0a2dce2 100644
--- a/homeassistant/components/plex/sensor.py
+++ b/homeassistant/components/plex/sensor.py
@@ -72,7 +72,7 @@ class PlexSensor(SensorEntity):
 
     _attr_has_entity_name = True
     _attr_name = None
-    _attr_icon = "mdi:plex"
+    _attr_translation_key = "plex"
     _attr_should_poll = False
     _attr_native_unit_of_measurement = "watching"