Use the building code for abbrev, if no abbrev exists

src/UNL/TourMap/BuildingData.php

@@ -98,7 +98,7 @@ class UNL_TourMap_BuildingData
                 
                 try {
                     $inStmt->execute(array(
-                        $line[1],
+                        empty($line[1]) ? $line[0] : $line[1],
                         $line[2],
                         $line[4],
                         $line[0],