diff --git a/docker/conf/loader.yml b/docker/conf/loader.yml
--- a/docker/conf/loader.yml
+++ b/docker/conf/loader.yml
@@ -1,6 +1,7 @@
 storage:
   cls: pipeline
   steps:
+    - cls: validate
     - cls: filter
     - cls: buffer
       min_batch_size: