diff --git a/module/VuFind/src/VuFind/Search/Solr/HierarchicalFacetListener.php b/module/VuFind/src/VuFind/Search/Solr/HierarchicalFacetListener.php
index 64883176e55fd578f1e00b4920d043f71b70d21e..88c51d831b54049a0bd40fc64106fe89d4f37775 100644
--- a/module/VuFind/src/VuFind/Search/Solr/HierarchicalFacetListener.php
+++ b/module/VuFind/src/VuFind/Search/Solr/HierarchicalFacetListener.php
@@ -197,6 +197,8 @@ class HierarchicalFacetListener
                 if (!isset($fields[$facetName])) {
                     continue;
                 }
+                // Keep the original data too
+                $fields["__unprocessed_$facetName"] = $fields[$facetName];
                 if (is_array($fields[$facetName])) {
                     // If full facet display style is used, discard all but the
                     // most significant value