diff --git a/.gitmodules b/.gitmodules
index e69de29..845b648 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "external"]
+	path = external
+	url = https://github.com/openssl/openssl.git
diff --git a/external b/external
new file mode 160000
index 0000000..87314d2
--- /dev/null
+++ b/external
@@ -0,0 +1 @@
+Subproject commit 87314d24c4f025df1ebf47dc527cc8a96bef354a