diff --git a/cjdns/Makefile b/cjdns/Makefile
index cd5ca90..7b8586e 100644
--- a/cjdns/Makefile
+++ b/cjdns/Makefile
@@ -21,6 +21,7 @@ PKG_VERSION:=20.2
 PKG_RELEASE:=1
 
 PKG_SOURCE_URL:=https://github.com/cjdelisle/cjdns.git
+PKG_MIRROR_HASH:=2bcf168b48faab8352db95f85a664adf733554ccc8ea788f1689385b1e7acecb
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_VERSION:=77259a49e5bc7ca7bc6dca5bd423e02be563bdc5
 PKG_LICENSE:=GPL-3.0