diff --git a/lib/plausible_web/controllers/site/membership_controller.ex b/lib/plausible_web/controllers/site/membership_controller.ex
index 0f95815487f1..aed8b695ea2b 100644
--- a/lib/plausible_web/controllers/site/membership_controller.ex
+++ b/lib/plausible_web/controllers/site/membership_controller.ex
@@ -140,11 +140,12 @@ defmodule PlausibleWeb.Site.MembershipController do
 
           message =
             case errors do
-              %{invitation: [error | _]} -> String.capitalize(error)
+              %{invitation: ["already sent" | _]} -> "Invitation has already been sent"
               _other -> "Site transfer request to #{email} has failed"
             end
 
           conn
+          |> put_flash(:ttl, :timer.seconds(5))
           |> put_flash(:error_title, "Transfer error")
           |> put_flash(:error, message)
       end
diff --git a/test/plausible_web/controllers/site/membership_controller_test.exs b/test/plausible_web/controllers/site/membership_controller_test.exs
index 98081e13d462..da68aca80dd7 100644
--- a/test/plausible_web/controllers/site/membership_controller_test.exs
+++ b/test/plausible_web/controllers/site/membership_controller_test.exs
@@ -232,7 +232,7 @@ defmodule PlausibleWeb.Site.MembershipControllerTest do
       conn = get(recycle(conn), redirected_to(conn, 302))
       html = html_response(conn, 200)
       assert html =~ "Transfer error"
-      assert html =~ "Already sent"
+      assert html =~ "Invitation has already been sent"
     end
   end