diff --git a/www/h2o/files/patch-deps_quicly_lib_quicly.c b/www/h2o/files/patch-deps_quicly_lib_quicly.c
deleted file mode 100644
index b105a79ab8bb..000000000000
--- a/www/h2o/files/patch-deps_quicly_lib_quicly.c
+++ /dev/null
@@ -1,10 +0,0 @@
---- deps/quicly/lib/quicly.c.orig	2023-11-11 22:44:34 UTC
-+++ deps/quicly/lib/quicly.c
-@@ -21,6 +21,7 @@
-  */
- #include <assert.h>
- #include <inttypes.h>
-+#include <sys/types.h>
- #include <netinet/in.h>
- #include <netinet/ip.h>
- #include <pthread.h>