diff --git a/homeassistant/components/asuswrt/strings.json b/homeassistant/components/asuswrt/strings.json
index 9023f5aa604..73887fcc4af 100644
--- a/homeassistant/components/asuswrt/strings.json
+++ b/homeassistant/components/asuswrt/strings.json
@@ -26,7 +26,7 @@
     },
     "abort": {
       "invalid_unique_id": "Impossible to determine a valid unique id for the device",
-      "not_unique_id_exist": "A device without a valid UniqueID is already configured. Configuration of multiple instance is not possible"
+      "not_unique_id_exist": "A device without a valid unique id is already configured. Configuration of multiple instance is not possible"
     }
   },
   "options": {
diff --git a/homeassistant/components/asuswrt/translations/en.json b/homeassistant/components/asuswrt/translations/en.json
index 6d8dc09aec7..4d4ea4d0a30 100644
--- a/homeassistant/components/asuswrt/translations/en.json
+++ b/homeassistant/components/asuswrt/translations/en.json
@@ -2,7 +2,7 @@
     "config": {
         "abort": {
             "invalid_unique_id": "Impossible to determine a valid unique id for the device",
-            "not_unique_id_exist": "A device without a valid UniqueID is already configured. Configuration of multiple instance is not possible",
+            "not_unique_id_exist": "A device without a valid unique id is already configured. Configuration of multiple instance is not possible",
             "single_instance_allowed": "Already configured. Only a single configuration possible."
         },
         "error": {
@@ -44,4 +44,4 @@
             }
         }
     }
-}
\ No newline at end of file
+}