diff --git a/DBus-service.md b/DBus-service.md
index adf869d..13e6b97 100644
--- a/DBus-service.md
+++ b/DBus-service.md
@@ -19,12 +19,18 @@ brew install dbus
 brew services start dbus
 ```
 
-The environment variable DBUS_LAUNCHD_SESSION_BUS_SOCKET needs to be set correctly. If it has not been, you will see error messages similar to
-those in the Troubleshooting section below. If that happens, issue this command:
+The environment variable DBUS_LAUNCHD_SESSION_BUS_SOCKET needs to be set correctly. If it has not been, you will see error messages similar to those in the Troubleshooting section below. If that happens, issue this command:
 
 ```export DBUS_LAUNCHD_SESSION_BUS_SOCKET=$(launchctl getenv DBUS_LAUNCHD_SESSION_BUS_SOCKET)```
 
-In particular, this command needs to be issued if you manually start or restart the Dbus service:
+If the DBus service is not running at all, the environment variable will remain unset after issued this command. To test it:
+
+```printenv DBUS_LAUNCHD_SESSION_BUS_SOCKET```
+
+You should see a response like:
+```/private/tmp/com.apple.launchd.DoArnyRzbQ/unix_domain_listener```
+
+If the response is empty, you must manually restart the DBus service and set the environment variable:
 
 ```
 brew services restart dbus