diff --git a/lib/domains/id/ac/istts.txt b/lib/domains/id/ac/istts.txt
new file mode 100644
index 0000000000..58defe75c6
--- /dev/null
+++ b/lib/domains/id/ac/istts.txt
@@ -0,0 +1 @@
+Institut Sains & Teknologi Terpadu Surabaya