diff --git a/web/i18n/en-US/dataset-documents.ts b/web/i18n/en-US/dataset-documents.ts
index 98fcc48fbb..484eaad338 100644
--- a/web/i18n/en-US/dataset-documents.ts
+++ b/web/i18n/en-US/dataset-documents.ts
@@ -355,6 +355,7 @@ const translation = {
     newChildChunk: 'New Child Chunk',
     keywords: 'KEYWORDS',
     addKeyWord: 'Add keyword',
+    keywordEmpty: 'Keyword can not be empty',
     keywordError: 'The maximum length of keyword is 20',
     keywordDuplicate: 'The keyword already exists',
     characters_one: 'character',