diff --git a/vars/default_vars.yml b/vars/default_vars.yml
index 342702b0d..0960183d0 100644
--- a/vars/default_vars.yml
+++ b/vars/default_vars.yml
@@ -287,7 +287,8 @@ mosquitto_install: False
 mosquitto_enabled: False
 mosquitto_port: 1883
 
-# Used by roles/nodejs/tasks/main.yml for Asterix, Node-RED, & Sugarizer
+# Used by roles/nodejs/tasks/main.yml for 3 roles:
+# nodered (Node-RED), pbx (Asterix, FreePBX) & sugarizer (Sugarizer)
 nodejs_version: 10.x    # was 8.x until 2019-01-29
 
 # Flow-based visual programming for wiring together IoT hardware devices etc