diff --git a/lib/domains/mx/inaoep.txt b/lib/domains/mx/inaoep.txt
new file mode 100644
index 0000000000..8a3ce01c50
--- /dev/null
+++ b/lib/domains/mx/inaoep.txt
@@ -0,0 +1 @@
+Instituto Nacional de Astrofísica, Óptica y Electrónica