diff --git a/DBus-service.md b/DBus-service.md
index 075c0ff..79d771c 100644
--- a/DBus-service.md
+++ b/DBus-service.md
@@ -227,5 +227,6 @@ Under Mac OSX, the environment variable `DBUS_LAUNCHD_SESSION_BUS_SOCKET` needs
       Failed to open connection to "session" message bus: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
 
 Script started via Cron must export environment variable `DBUS_SESSION_BUS_ADDRESS` before calling dbus-send 
+_(Credits to [Thomas](https://coldfix.de/2018/10/09/dbus-cronjob/))_
 
-```export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/$(id -u)/bus```
\ No newline at end of file
+```export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/$(id -u)/bus```