diff --git a/ext/transcode/main.php b/ext/transcode/main.php
index b47efcb1..8a04f884 100644
--- a/ext/transcode/main.php
+++ b/ext/transcode/main.php
@@ -22,6 +22,8 @@ class ImageTranscodeException extends SCoreException
 
 class TranscodeImage extends Extension
 {
+    const ACTION_BULK_TRANSCODE = "bulk_transcode";
+
     const CONVERSION_ENGINES = [
         "GD" => "gd",
         "ImageMagick" => "convert",