diff --git a/homeassistant/components/harmony/config_flow.py b/homeassistant/components/harmony/config_flow.py
index 6d5adabe2352..8290d51df819 100644
--- a/homeassistant/components/harmony/config_flow.py
+++ b/homeassistant/components/harmony/config_flow.py
@@ -87,7 +87,7 @@ async def async_step_ssdp(self, discovery_info):
         friendly_name = discovery_info[ssdp.ATTR_UPNP_FRIENDLY_NAME]
 
         if self._host_already_configured(parsed_url.hostname):
-            return self.async_abort(reason="already_configured")
+            return self.async_abort(reason="already_configured_device")
 
         # pylint: disable=no-member
         self.context["title_placeholders"] = {"name": friendly_name}
diff --git a/homeassistant/components/harmony/strings.json b/homeassistant/components/harmony/strings.json
index 86de34672be0..877729c6d4b5 100644
--- a/homeassistant/components/harmony/strings.json
+++ b/homeassistant/components/harmony/strings.json
@@ -15,11 +15,11 @@
       }
     },
     "error": {
-      "cannot_connect": "Failed to connect, please try again",
-      "unknown": "Unexpected error"
+      "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
+      "unknown": "[%key:common::config_flow::error::unknown%]"
     },
     "abort": {
-      "already_configured": "Device is already configured"
+      "already_configured_device": "[%key:common::config_flow::abort::already_configured_device%]"
     }
   },
   "options": {
@@ -33,4 +33,4 @@
       }
     }
   }
-}
\ No newline at end of file
+}