diff --git a/dist/bundle.es.js b/dist/bundle.es.js
index 2af1339..d4b83f9 100644
--- a/dist/bundle.es.js
+++ b/dist/bundle.es.js
@@ -6056,6 +6056,7 @@ const defaultState$4 = {
   thumbnail_url: '',
   thumbnailPath: '',
   uploadThumbnailStatus: API_DOWN,
+  thumbnailError: undefined,
   description: '',
   language: '',
   releaseTime: undefined,
diff --git a/src/redux/reducers/publish.js b/src/redux/reducers/publish.js
index e89564d..39e40f5 100644
--- a/src/redux/reducers/publish.js
+++ b/src/redux/reducers/publish.js
@@ -22,6 +22,7 @@ type PublishState = {
   thumbnail_url: string,
   thumbnailPath: string,
   uploadThumbnailStatus: string,
+  thumbnailError: ?boolean,
   description: string,
   language: string,
   releaseTime: ?string,
@@ -55,6 +56,7 @@ const defaultState: PublishState = {
   thumbnail_url: '',
   thumbnailPath: '',
   uploadThumbnailStatus: THUMBNAIL_STATUSES.API_DOWN,
+  thumbnailError: undefined,
   description: '',
   language: '',
   releaseTime: undefined,