diff --git a/pkg/openthread/Makefile b/pkg/openthread/Makefile
index 500df0d40a..98e89e9be8 100644
--- a/pkg/openthread/Makefile
+++ b/pkg/openthread/Makefile
@@ -1,6 +1,7 @@
 PKG_NAME=openthread
 PKG_URL=https://github.com/openthread/openthread.git
 PKG_VERSION=thread-reference-20180926
+PKG_LICENSE=BSD-3-Clause
 PKG_BUILDDIR ?= $(PKGDIRBASE)/$(PKG_NAME)
 
 ifneq (,$(filter openthread-ftd,$(USEMODULE)))