diff --git a/lib/domains/ng/edu/c3longthanh.txt b/lib/domains/ng/edu/c3longthanh.txt
new file mode 100644
index 0000000000..63eb2f20a2
--- /dev/null
+++ b/lib/domains/ng/edu/c3longthanh.txt
@@ -0,0 +1 @@
+THPT Long Thành