diff --git a/includes/rules.core.inc b/includes/rules.core.inc
index 559d1cf..365faae 100644
--- a/includes/rules.core.inc
+++ b/includes/rules.core.inc
@@ -10,6 +10,8 @@
 // @todo
 //   Remove for a future release.
 require_once dirname(__FILE__) . '/faces.inc';
+// Workaround for problem with getFileName method.
+require_once dirname(dirname(__FILE__)) . '/modules/data.eval.inc';
 
 /**
  * Make sure loaded rule configs are instantiated right.