diff --git a/homeassistant/components/fronius/strings.json b/homeassistant/components/fronius/strings.json
index 9a2b498f28c..51cb087efc2 100644
--- a/homeassistant/components/fronius/strings.json
+++ b/homeassistant/components/fronius/strings.json
@@ -18,6 +18,9 @@
         "description": "Update your configuration information for {device}.",
         "data": {
           "host": "[%key:common::config_flow::data::host%]"
+        },
+        "data_description": {
+          "host": "[%key:component::fronius::config::step::user::data_description::host%]"
         }
       }
     },