diff --git a/extra/lib/plausible/help_scout.ex b/extra/lib/plausible/help_scout.ex
index 76bb4e409..11e4d9adb 100644
--- a/extra/lib/plausible/help_scout.ex
+++ b/extra/lib/plausible/help_scout.ex
@@ -106,7 +106,7 @@ defmodule Plausible.HelpScout do
          sites_count: Plausible.Teams.owned_sites_count(team),
          sites_link:
            Routes.kaffy_resource_url(PlausibleWeb.Endpoint, :index, :sites, :site,
-             search: user.email
+             custom_search: user.email
            )
        }}
     end
diff --git a/test/plausible/help_scout_test.exs b/test/plausible/help_scout_test.exs
index 67d88674a..ad39086aa 100644
--- a/test/plausible/help_scout_test.exs
+++ b/test/plausible/help_scout_test.exs
@@ -61,7 +61,7 @@ defmodule Plausible.HelpScoutTest do
         crm_url = "#{PlausibleWeb.Endpoint.url()}/crm/auth/user/#{user_id}"
 
         owned_sites_url =
-          "#{PlausibleWeb.Endpoint.url()}/crm/sites/site?search=#{URI.encode_www_form(email)}"
+          "#{PlausibleWeb.Endpoint.url()}/crm/sites/site?custom_search=#{URI.encode_www_form(email)}"
 
         assert {:ok,
                 %{
@@ -410,7 +410,7 @@ defmodule Plausible.HelpScoutTest do
         crm_url = "#{PlausibleWeb.Endpoint.url()}/crm/auth/user/#{user_id}"
 
         owned_sites_url =
-          "#{PlausibleWeb.Endpoint.url()}/crm/sites/site?search=#{URI.encode_www_form(email)}"
+          "#{PlausibleWeb.Endpoint.url()}/crm/sites/site?custom_search=#{URI.encode_www_form(email)}"
 
         assert {:ok,
                 %{
@@ -448,7 +448,7 @@ defmodule Plausible.HelpScoutTest do
         crm_url = "#{PlausibleWeb.Endpoint.url()}/crm/auth/user/#{user2.id}"
 
         owned_sites_url =
-          "#{PlausibleWeb.Endpoint.url()}/crm/sites/site?search=#{URI.encode_www_form(user2.email)}"
+          "#{PlausibleWeb.Endpoint.url()}/crm/sites/site?custom_search=#{URI.encode_www_form(user2.email)}"
 
         assert {:ok,
                 %{