diff --git a/homeassistant/components/matter/strings.json b/homeassistant/components/matter/strings.json
index b4ef5b79340..f81de11d30e 100644
--- a/homeassistant/components/matter/strings.json
+++ b/homeassistant/components/matter/strings.json
@@ -36,6 +36,7 @@
       "addon_start_failed": "Failed to start the Matter Server add-on.",
       "already_configured": "[%key:common::config_flow::abort::already_configured_device%]",
       "already_in_progress": "[%key:common::config_flow::abort::already_in_progress%]",
+      "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
       "not_matter_addon": "Discovered add-on is not the official Matter Server add-on.",
       "reconfiguration_successful": "Successfully reconfigured the Matter integration."
     },