diff --git a/src/constants/messages.ts b/src/constants/messages.ts
index 5276f105..b021f3c9 100644
--- a/src/constants/messages.ts
+++ b/src/constants/messages.ts
@@ -121,6 +121,7 @@ export const SUCCESS_MESSAGES = {
   RECYCLE_ITEM: 'RECYCLE_ITEM',
   RECYCLE_ITEMS: 'RECYCLE_ITEMS',
   UPLOAD_ITEM_THUMBNAIL: 'UPLOAD_ITEM_THUMBNAIL',
+  DELETE_ITEM_THUMBNAIL: 'DELETE_ITEM_THUMBNAIL',
   UPLOAD_AVATAR: 'UPLOAD_AVATAR',
   IMPORT_ZIP: 'IMPORT_ZIP',
   IMPORT_H5P: 'IMPORT_H5P',
diff --git a/src/langs/en/messages.json b/src/langs/en/messages.json
index e8321313..c9a76d9a 100644
--- a/src/langs/en/messages.json
+++ b/src/langs/en/messages.json
@@ -126,5 +126,7 @@
   "PATCH_PROFILE": "Your profile has been saved successfully",
 
   "PUT_ITEM_GEOLOCATION": "The geolocation has been saved successfully",
-  "DELETE_ITEM_GEOLOCATION": "The geolocation has been deleted successfully"
+  "DELETE_ITEM_GEOLOCATION": "The geolocation has been deleted successfully",
+
+  "DELETE_ITEM_THUMBNAIL": "The thumbnail was successfully deleted"
 }