diff --git a/plugins/UserCountryMap/Controller.php b/plugins/UserCountryMap/Controller.php
index 63e84c6ba877e1d92487f48e8839138855d0427c..00cf891b3bd801837d700e964e71bd395afa4e38 100644
--- a/plugins/UserCountryMap/Controller.php
+++ b/plugins/UserCountryMap/Controller.php
@@ -18,6 +18,8 @@ use Piwik\Site;
 use Piwik\Translation\Translator;
 use Piwik\View;
 
+require_once PIWIK_INCLUDE_PATH . '/plugins/UserCountry/functions.php';
+
 /**
  *
  */