diff --git a/module/VuFind/src/VuFind/ILS/Driver/Voyager.php b/module/VuFind/src/VuFind/ILS/Driver/Voyager.php
index 6e8360eea1979b485e30f4fe7ded2a5be35b4376..29d67b0a7bf73dd5a8607a40e1f011b15e063fbd 100644
--- a/module/VuFind/src/VuFind/ILS/Driver/Voyager.php
+++ b/module/VuFind/src/VuFind/ILS/Driver/Voyager.php
@@ -797,7 +797,7 @@ class Voyager extends AbstractBase
         $raw = $processed = [];
         // Collect raw data:
         while ($row = $sqlStmt->fetch(PDO::FETCH_ASSOC)) {
-            $raw[] = $row['MFHD_ID'] . '||' . $row['ENUMCHRON'];
+            $raw[] = $row['MFHD_ID'] . '||' . utf8_encode($row['ENUMCHRON']);
         }
         // Deduplicate data and format it:
         foreach (array_unique($raw) as $current) {