diff --git a/lib/search/kanji_search.dart b/lib/search/kanji_search.dart
index 0bd3aaf..ed4423a 100644
--- a/lib/search/kanji_search.dart
+++ b/lib/search/kanji_search.dart
@@ -142,7 +142,7 @@ Future<KanjiSearchResult?> searchKanjiWithDbConnection(
   final radical = radicals.isNotEmpty
       ? KanjiSearchRadical(
           symbol: radicals.first['symbol'] as String,
-          names: (radicals.first['names'] as String).split(','),
+          names: (radicals.first['names'] as String?)?.split(',') ?? [],
           // TODO: add radical form data
           forms: [],
           // TODO: add radical meaning data