diff --git a/docker/environment.sh b/docker/environment.sh.template
similarity index 57%
rename from docker/environment.sh
rename to docker/environment.sh.template
index f4bb297..5ff3cae 100755
--- a/docker/environment.sh
+++ b/docker/environment.sh.template
@@ -1,6 +1,9 @@
 #!/usr/bin/env bash
 
-export ASTEROID_STREAM_URL='http://ice.asteroid.radio'
+# Ensure you copy this file to 'environment.sh' in this directory, and
+# change it to match your own stream configuration.
+
+export ASTEROID_STREAM_URL='http://localhost:8080'
 
 # source this file prior to starting the asteroid containers. Set the
 # DB name and access params here.