diff --git a/lib/domains/blacklist.txt b/lib/domains/blacklist.txt
index e862695be2..921ae8ddac 100644
--- a/lib/domains/blacklist.txt
+++ b/lib/domains/blacklist.txt
@@ -13,3 +13,4 @@ sharif.edu
 my.edu.moi
 art.edu.lv
 aaedu.edu.pl
+k.tut.edu.pl
\ No newline at end of file