diff --git a/src/utilities/data-formatter.js b/src/utilities/data-formatter.js
index 49ecc0a9c..681037a38 100644
--- a/src/utilities/data-formatter.js
+++ b/src/utilities/data-formatter.js
@@ -164,6 +164,7 @@ export default class DataFormatter {
     dataFormatter.characterTable = json.characterTable;
     dataFormatter.values = json.values;
     dataFormatter.characters = json.characters;
+    dataFormatter.specialIndexes = json.specialIndexes;
     return dataFormatter;
   }