diff --git a/Koha/Database/Columns.pm b/Koha/Database/Columns.pm
index 284ced531f..13a232859c 100644
--- a/Koha/Database/Columns.pm
+++ b/Koha/Database/Columns.pm
@@ -152,8 +152,8 @@ sub columns {
             "categorycode"                => __("Patron category"),
             "checkprevcheckout"           => __("Check for previous checkouts"),
             "city"                        => __("City"),
-            "contactfirstname"            => __("Alternate contact: First name"),
-            "contactname"                 => __("Alternate contact: Surname"),
+            "contactfirstname"            => __("Guarantor first name"),
+            "contactname"                 => __("Guarantor surname"),
             "contactnote"                 => __("Alternate contact: Note"),
             "contacttitle"                => __("Alternate contact: Title"),
             "country"                     => __("Country"),