diff --git a/lib/domains/jp/ac/tsukuba.txt b/lib/domains/jp/ac/tsukuba.txt
new file mode 100644
index 0000000000..5e0b1fc3dc
--- /dev/null
+++ b/lib/domains/jp/ac/tsukuba.txt
@@ -0,0 +1 @@
+University of Tsukuba