diff --git a/.gitmodules b/.gitmodules
index e69de29..1babc97 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "sec-chart"]
+	path = sec-chart
+	url = git@github.com:SecWiki/sec-chart.git
diff --git a/sec-chart b/sec-chart
new file mode 160000
index 0000000..294d7c1
--- /dev/null
+++ b/sec-chart
@@ -0,0 +1 @@
+Subproject commit 294d7c1ff1eba297fa892dda08f3c05e90ed1428