diff --git a/openrefine-bash-curl.sh b/openrefine-bash-curl.sh
index 67c0fa3..81ef40b 100644
--- a/openrefine-bash-curl.sh
+++ b/openrefine-bash-curl.sh
@@ -1,6 +1,7 @@
 #!/bin/bash
 # openrefine-bash-curl.sh, Felix Lohmeier, v0.1, 2020-06-29
 # How to control OpenRefine 3.3+ with cURL (and jq) in Bash scripts
+# https://gist.github.com/felixlohmeier/d76bd27fbc4b8ab6d683822cdf61f81d
 # tested on Linux (Fedora 33), needs to be adapted to work on macOS
 
 # make script executable from another directory