diff --git a/Small_but_effective_blocklist.txt b/Small_but_effective_blocklist.txt
index fca96c3..478f619 100644
--- a/Small_but_effective_blocklist.txt
+++ b/Small_but_effective_blocklist.txt
@@ -56,6 +56,7 @@
 ||bkrtx.com^$third-party
 ||blueconic.net^$third-party
 ||bluekai.com^$third-party
+||||boomtrain.com^^$third-party
 ||bounceexchange.com^$third-party
 ||bouncex.net^$third-party
 ||brightcom.com^$third-party