diff --git a/dns2tcp/Makefile b/dns2tcp/Makefile
new file mode 100644
index 000000000..203256076
--- /dev/null
+++ b/dns2tcp/Makefile
@@ -0,0 +1,43 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=dns2tcp
+PKG_VERSION:=1.1.0
+PKG_RELEASE:=3
+
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL:=https://github.com/zfl9/dns2tcp.git
+PKG_SOURCE_VERSION:=10ed687778f18d1b9c98bb51187a3a9086d3a0d9
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
+PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION)
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)/$(PKG_SOURCE_SUBDIR)
+
+PKG_BUILD_PARALLEL:=1
+PKG_USE_MIPS16:=0
+
+PKG_LICENSE:=GPL-3.0
+PKG_LICENSE_FILES:=LICENSE
+PKG_MAINTAINER:=pexcn <i@pexcn.me>
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/dns2tcp
+	SECTION:=net
+	CATEGORY:=Network
+	TITLE:=Utility to convert DNS query from UDP to TCP
+	URL:=https://github.com/zfl9/dns2tcp
+endef
+
+define Package/dns2tcp/description
+Utility to convert DNS query from UDP to TCP.
+endef
+
+define Package/dns2tcp/conffiles
+/etc/config/dns2tcp
+endef
+
+define Package/dns2tcp/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/dns2tcp $(1)/usr/bin
+endef
+
+$(eval $(call BuildPackage,dns2tcp))
diff --git a/dns2tcp/patches/001-build-with-gcc-O3-optimizations.patch b/dns2tcp/patches/001-build-with-gcc-O3-optimizations.patch
new file mode 100644
index 000000000..308fecca9
--- /dev/null
+++ b/dns2tcp/patches/001-build-with-gcc-O3-optimizations.patch
@@ -0,0 +1,31 @@
+From 01fc93331291ea55e8306374f6406c130de951a8 Mon Sep 17 00:00:00 2001
+From: pexcn <i@pexcn.me>
+Date: Sun, 5 Apr 2020 22:30:26 +0800
+Subject: [PATCH] build with gcc -O3 optimizations
+
+---
+ Makefile | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index ae6c171..02b8587 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,12 +1,12 @@
+ CC = gcc
+-CFLAGS = -std=c99 -Wall -Wextra -O2
++CFLAGS = -std=c99 -Wall -Wextra -O3
+ LIBS = -lm
+ SRCS = dns2tcp.c
+ OBJS = $(SRCS:.c=.o)
+ MAIN = dns2tcp
+ DESTDIR = /usr/local/bin
+ 
+-EVCFLAGS = -w -O2
++EVCFLAGS = -w -O3
+ EVSRCFILE = libev/ev.c
+ EVOBJFILE = ev.o
+ 
+-- 
+2.25.1
+