diff --git a/Repositories/statistics/config/inc.vars.es_src.php b/Repositories/statistics/config/inc.vars.es_src.php
index 75dd2ac..76c28f8 100755
--- a/Repositories/statistics/config/inc.vars.es_src.php
+++ b/Repositories/statistics/config/inc.vars.es_src.php
@@ -162,6 +162,17 @@
 			"XA" => "Repository Admin",
 			"XI" => "Otago Intranet",
 		),
+		/* NJS 2007-01-31
+		   List of known search engines. Must correspond to the
+		   $bot_patterns variable in eprints-usage.php.
+		*/
+		"search_engines" => array(
+			"X@GG" => "Google",
+			"X@YH" => "Yahoo!",
+			"X@MS" => "Windows Live Search",
+			"X@AC" => "Ask.com",
+			"X@OS" => "Other search engine",
+		),
 		"messages" => array(
 			"vTITLE" => "Messages",
 			"vDESCRIPTION" => "Error messages.",