diff --git a/README.md b/README.md
index 0b07d6ae8c..e3339a9b11 100644
--- a/README.md
+++ b/README.md
@@ -134,6 +134,8 @@ Pull images before launch docker-compose
 
 Etc..
 
+```nightly``` : Development version, the latest version with successful automated tests. Built and published every night
+
 
 ## Development mode