diff --git a/src/lang/en/drivers.json b/src/lang/en/drivers.json
index 1b53524d3..bc9b2e130 100755
--- a/src/lang/en/drivers.json
+++ b/src/lang/en/drivers.json
@@ -452,6 +452,8 @@
     "show_hidden": "Show hidden",
     "show_hidden-tips": "show hidden directories and files",
     "thumb_cache_folder": "Thumb cache folder",
+    "thumb_concurrency": "Thumb concurrency",
+    "thumb_concurrency-tips": "Number of concurrent thumbnail generation goroutines. This controls how many thumbnails can be generated in parallel.",
     "thumbnail": "Thumbnail",
     "thumbnail-tips": "enable thumbnail"
   },
@@ -1110,4 +1112,4 @@
     "WoPan": "WoPan",
     "YandexDisk": "YandexDisk"
   }
-}
+}
\ No newline at end of file