diff --git a/homeassistant/components/here_travel_time/strings.json b/homeassistant/components/here_travel_time/strings.json
index c0534fa7154..89350261299 100644
--- a/homeassistant/components/here_travel_time/strings.json
+++ b/homeassistant/components/here_travel_time/strings.json
@@ -61,8 +61,7 @@
       "init": {
         "data": {
           "traffic_mode": "Traffic mode",
-          "route_mode": "Route mode",
-          "unit_system": "Unit system"
+          "route_mode": "Route mode"
         }
       },
       "time_menu": {