diff --git a/.gitmodules b/.gitmodules
index ac85eaa..da846e3 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -61,3 +61,6 @@
 [submodule "elegant"]
 	path = elegant
 	url = git@github.com:talha131/pelican-elegant.git
+[submodule "niu-x2"]
+	path = niu-x2
+	url = http://github.com/wilbur-ma/niu-x2
diff --git a/niu-x2 b/niu-x2
new file mode 160000
index 0000000..8d57b46
--- /dev/null
+++ b/niu-x2
@@ -0,0 +1 @@
+Subproject commit 8d57b4674b2e5ea8ab724bdeb7592e05dff90478