diff --git a/lib/domains/pl/edu/ub.txt b/lib/domains/pl/edu/ub.txt
deleted file mode 100644
index 9edc43a0e1..0000000000
--- a/lib/domains/pl/edu/ub.txt
+++ /dev/null
@@ -1 +0,0 @@
-University of Bialystok