diff --git a/lib/utils/utils.dart b/lib/utils/utils.dart
index 1fc7812..be69266 100644
--- a/lib/utils/utils.dart
+++ b/lib/utils/utils.dart
@@ -8,7 +8,8 @@ Source? getSource(String lang, String name) {
     return sourcesList.lastWhere(
       (element) =>
           element.name!.toLowerCase() == name.toLowerCase() &&
-          element.lang == lang,
+          element.lang == lang &&
+          element.sourceCode != null,
       orElse: () => throw ("Error when getting source"),
     );
   } catch (_) {