diff --git a/swarm/README-short.txt b/swarm/README-short.txt
index 0e3c180d3..a9808cef1 100644
--- a/swarm/README-short.txt
+++ b/swarm/README-short.txt
@@ -1 +1 @@
-Swarm: a Docker-native clustering system.
+Classic Swarm is no longer actively developed; use Swarm mode built into the Docker Engine instead