diff --git a/lib/domains/mx/edu/cesunbc.txt b/lib/domains/mx/edu/cesunbc.txt
new file mode 100644
index 0000000000..45d6cdd011
--- /dev/null
+++ b/lib/domains/mx/edu/cesunbc.txt
@@ -0,0 +1 @@
+CESUN
\ No newline at end of file