diff --git a/package/boot/at91bootstrap/Makefile b/package/boot/at91bootstrap/Makefile
index 8a08a7aa2c..633dc14cd9 100644
--- a/package/boot/at91bootstrap/Makefile
+++ b/package/boot/at91bootstrap/Makefile
@@ -14,6 +14,7 @@ PKG_RELEASE:=
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/linux4sam/at91bootstrap.git
+PKG_MIRROR_HASH:=783100ce586460b8230f7b5b56cbc2e6473b888f38330c1d1b64777e3ae59473
 PKG_SOURCE_VERSION:=04efa5500d60a0211d14b6ee60df7ce0a828704d
 
 PKG_BUILD_DIR = \