diff --git a/lib/domains/abused.txt b/lib/domains/abused.txt
index b0f8a9122c..2410925d29 100644
--- a/lib/domains/abused.txt
+++ b/lib/domains/abused.txt
@@ -1419,4 +1419,5 @@ virtual.ceipa.edu.co
 binus.ac.id
 utp.edu.pe
 ms.upla.edu.pe
-alumnos.upm.es
\ No newline at end of file
+alumnos.upm.es
+udn.vn
\ No newline at end of file
diff --git a/lib/domains/vn/udn.txt b/lib/domains/vn/udn.txt
deleted file mode 100644
index f3f5e8597a..0000000000
--- a/lib/domains/vn/udn.txt
+++ /dev/null
@@ -1 +0,0 @@
-Danang College Of Technology