diff --git a/homeassistant/components/goalzero/strings.json b/homeassistant/components/goalzero/strings.json
index 57b03d4dd73..c16b3b283b5 100644
--- a/homeassistant/components/goalzero/strings.json
+++ b/homeassistant/components/goalzero/strings.json
@@ -13,7 +13,7 @@
     "error": {
       "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
       "invalid_host": "Invalid host provided",
-      "unknown": "Unknown Error"
+      "unknown": "[%key:common::config_flow::error::unknown%]"
     },
     "abort": {
       "already_configured": "[%key:common::config_flow::abort::already_configured_account%]"