diff --git a/deps/ngtcp2/.gitignore b/deps/ngtcp2/.gitignore
index 40909a37dd7c69..1ccf3c1c44daf8 100644
--- a/deps/ngtcp2/.gitignore
+++ b/deps/ngtcp2/.gitignore
@@ -6,3 +6,4 @@ Makefile
 *gnutls*
 ngtcp2/**/.gitignore
 ngtcp2/**/.deps
+nghttp3/**/.deps