diff --git a/vendor/nim-ngtcp2 b/vendor/nim-ngtcp2
new file mode 160000
index 00000000..6834f475
--- /dev/null
+++ b/vendor/nim-ngtcp2
@@ -0,0 +1 @@
+Subproject commit 6834f4756b6af58356ac9c4fef3d71db3c3ae5fe