diff --git a/Repositories/otago_eprints3/otago_eprints/cfg/cfg.d/search.pl b/Repositories/otago_eprints3/otago_eprints/cfg/cfg.d/search.pl
index bf5d24e..deae9e6 100755
--- a/Repositories/otago_eprints3/otago_eprints/cfg/cfg.d/search.pl
+++ b/Repositories/otago_eprints3/otago_eprints/cfg/cfg.d/search.pl
@@ -36,10 +36,10 @@
 	citation => "result",
 	page_size => 20,
 	order_methods => {
-		"byyear" 	 => "-date/creators_name/title",
-		"byyearoldest"	 => "date/creators_name/title",
-		"byname"  	 => "creators_name/-date/title",
-		"bytitle" 	 => "title/creators_name/-date"
+		"byyear" 	 => "-date/-id_number/creators_name/title",
+		"byyearoldest"	 => "date/id_number/creators_name/title",
+		"byname"  	 => "creators_name/-date/-id_number/title",
+		"bytitle" 	 => "title/creators_name/-date/-id_number"
 	},
 	default_order => "byyear",
 };
@@ -68,10 +68,10 @@
 	citation => "result",
 	page_size => 20,
 	order_methods => {
-		"byyear" 	 => "-date/creators_name/title",
-		"byyearoldest"	 => "date/creators_name/title",
-		"byname"  	 => "creators_name/-date/title",
-		"bytitle" 	 => "title/creators_name/-date"
+		"byyear" 	 => "-date/-id_number/creators_name/title",
+		"byyearoldest"	 => "date/id_number/creators_name/title",
+		"byname"  	 => "creators_name/-date/-id_number/title",
+		"bytitle" 	 => "title/creators_name/-date/-id_number"
 	},
 	default_order => "byyear",
 };