add empty filter
diff --git a/metadata/service/server/shipper.yml b/metadata/service/server/shipper.yml
index 1d39119..824646c 100644
--- a/metadata/service/server/shipper.yml
+++ b/metadata/service/server/shipper.yml
@@ -48,4 +48,5 @@
       encoder:
         heka-logfile:
           engine: RstEncoder
+      filter: