diff --git a/module/VuFindConsole/src/VuFindConsole/Controller/UtilController.php b/module/VuFindConsole/src/VuFindConsole/Controller/UtilController.php
index 9362261dfd775261c4c409f5241416379b48bc75..f24357777df2328bfc24e55daf19cba5db39e80d 100644
--- a/module/VuFindConsole/src/VuFindConsole/Controller/UtilController.php
+++ b/module/VuFindConsole/src/VuFindConsole/Controller/UtilController.php
@@ -445,6 +445,9 @@ class UtilController extends AbstractBase
             ->get('VuFind\SearchResultsPluginManager')->get('Solr')
             ->getFullFieldFacets(array('hierarchy_top_id'));
         foreach ($hierarchies['hierarchy_top_id']['data']['list'] as $hierarchy) {
+            if (empty($hierarchy['value'])) {
+                continue;
+            }
             Console::writeLine("Building tree for {$hierarchy['value']}...");
             $driver = $recordLoader->load($hierarchy['value']);
             if ($driver->getHierarchyType()) {