diff --git a/references.bib b/references.bib
index 5fab0ac..c7d30bf 100644
--- a/references.bib
+++ b/references.bib
@@ -1123,6 +1123,7 @@
 	publisher = {USENIX},
 	year = {2018},
 	url = {https://www.usenix.org/system/files/conference/foci18/foci18-paper-dunna.pdf},
+	discussion_url = {https://groups.google.com/g/traffic-obf/c/-z0gzKONGtI},
 }
 
 @inproceedings{Manfredi2018a,