diff --git a/RELICENSE/kaczmarj.md b/RELICENSE/kaczmarj.md
new file mode 100644
index 00000000..232df014
--- /dev/null
+++ b/RELICENSE/kaczmarj.md
@@ -0,0 +1,15 @@
+# Permission to Relicense under MPLv2 or any other OSI approved license chosen by the current ZeroMQ BDFL
+
+This is a statement by Jakub Kaczmarzyk
+that grants permission to relicense its copyrights in the libzmq C++
+library (ZeroMQ) under the Mozilla Public License v2 (MPLv2) or any other
+Open Source Initiative approved license chosen by the current ZeroMQ
+BDFL (Benevolent Dictator for Life).
+
+A portion of the commits made by the Github handle "kaczmarj", with
+commit author "Jakub Kaczmarzyk jakub.kaczmarzyk@gmail.com", are copyright of Jakub Kaczmarzyk.
+This document hereby grants the libzmq project team to relicense libzmq,
+including all past, present and future contributions of the author listed above.
+
+Jakub Kaczmarzyk
+2020/07/29