diff --git a/lib/domains/pl/katowice/sltzn.txt b/lib/domains/pl/katowice/sltzn.txt
new file mode 100644
index 0000000000..b2d9a46050
--- /dev/null
+++ b/lib/domains/pl/katowice/sltzn.txt
@@ -0,0 +1 @@
+Śląskie Techniczne Zakłady Naukowe
\ No newline at end of file