diff --git a/stable-download/origin_blacklist.txt b/stable-download/origin_blacklist.txt
index a9c848b..ca2a4d6 100644
--- a/stable-download/origin_blacklist.txt
+++ b/stable-download/origin_blacklist.txt
@@ -21,6 +21,7 @@
 .*deadfish\.cf$
 .*gitpod\.io$
 .*gsucks\.repl\.co$
+.*builders.tools\.tk$
 
 # replit-wildcard: .*repl(it)?\..{1,5}$