diff --git a/classes/file_search.php b/classes/file_search.php
index 1356af1..84df448 100644
--- a/classes/file_search.php
+++ b/classes/file_search.php
@@ -639,7 +639,7 @@ public static function make_where_clause(object $criteria): array {
      */
     public static function get_id_from_csv(string $line): int {
         // Interpret the last line as a csv line.
-        $csv = str_getcsv($line);
+        $csv = str_getcsv($line, ",", "\"", "\\");
         // Check a few columns to ensure we have a valid line.
         if (empty($csv[self::CSV_CONTEXTID])) {
             return 0;