diff --git a/modules/storages/config/locales/en.yml b/modules/storages/config/locales/en.yml
index b1029eef75bf..ab7997b38cab 100644
--- a/modules/storages/config/locales/en.yml
+++ b/modules/storages/config/locales/en.yml
@@ -32,7 +32,7 @@ en:
           attributes:
             host:
               authorization_header_missing: is not fully set up. The Nextcloud instance does not receive the "Authorization" header, which is necessary for a Bearer token based authorization of API requests. Please double check your HTTP server configuration.
-              cannot_be_connected_to: can not be connected to.
+              cannot_be_connected_to: could not be reached. Please ensure the host is reachable and the OpenProject integration app is installed.
               minimal_nextcloud_version_unmet: does not meet minimal version requirements (must be Nextcloud 23 or higher)
               not_nextcloud_server: is not a Nextcloud server
               op_application_not_installed: appears to not have the app "OpenProject integration" installed. Please install it first and then try again.