diff --git a/homeassistant/components/syncthing/const.py b/homeassistant/components/syncthing/const.py
index a9ec0ad0375..0e5b2714be8 100644
--- a/homeassistant/components/syncthing/const.py
+++ b/homeassistant/components/syncthing/const.py
@@ -20,14 +20,3 @@ EVENTS = {
     "StateChanged": STATE_CHANGED_RECEIVED,
     "FolderPaused": FOLDER_PAUSED_RECEIVED,
 }
-
-
-FOLDER_SENSOR_ICONS = {
-    "paused": "mdi:folder-clock",
-    "scanning": "mdi:folder-search",
-    "syncing": "mdi:folder-sync",
-    "idle": "mdi:folder",
-}
-
-FOLDER_SENSOR_ALERT_ICON = "mdi:folder-alert"
-FOLDER_SENSOR_DEFAULT_ICON = "mdi:folder"
diff --git a/homeassistant/components/syncthing/icons.json b/homeassistant/components/syncthing/icons.json
new file mode 100644
index 00000000000..0e86b6e4fa3
--- /dev/null
+++ b/homeassistant/components/syncthing/icons.json
@@ -0,0 +1,16 @@
+{
+  "entity": {
+    "sensor": {
+      "syncthing": {
+        "default": "mdi:folder-alert",
+        "state": {
+          "unknown": "mdi:folder",
+          "idle": "mdi:folder",
+          "scanning": "mdi:folder-search",
+          "syncing": "mdi:folder-sync",
+          "paused": "mdi:folder-clock"
+        }
+      }
+    }
+  }
+}
diff --git a/homeassistant/components/syncthing/sensor.py b/homeassistant/components/syncthing/sensor.py
index c88de91cae0..7b22017c9c1 100644
--- a/homeassistant/components/syncthing/sensor.py
+++ b/homeassistant/components/syncthing/sensor.py
@@ -13,9 +13,6 @@ from homeassistant.helpers.event import async_track_time_interval
 from .const import (
     DOMAIN,
     FOLDER_PAUSED_RECEIVED,
-    FOLDER_SENSOR_ALERT_ICON,
-    FOLDER_SENSOR_DEFAULT_ICON,
-    FOLDER_SENSOR_ICONS,
     FOLDER_SUMMARY_RECEIVED,
     SCAN_INTERVAL,
     SERVER_AVAILABLE,
@@ -57,6 +54,7 @@ class FolderSensor(SensorEntity):
     """A Syncthing folder sensor."""
 
     _attr_should_poll = False
+    _attr_translation_key = "syncthing"
 
     STATE_ATTRIBUTES = {
         "errors": "errors",
@@ -116,15 +114,6 @@ class FolderSensor(SensorEntity):
         """Could the device be accessed during the last update call."""
         return self._state is not None
 
-    @property
-    def icon(self):
-        """Return the icon for this sensor."""
-        if self._state is None:
-            return FOLDER_SENSOR_DEFAULT_ICON
-        if self.state in FOLDER_SENSOR_ICONS:
-            return FOLDER_SENSOR_ICONS[self.state]
-        return FOLDER_SENSOR_ALERT_ICON
-
     @property
     def extra_state_attributes(self):
         """Return the state attributes."""