diff --git a/docker-compose.thunderbird.yml b/docker-compose.thunderbird.yml
index b13a416..bdea4c9 100644
--- a/docker-compose.thunderbird.yml
+++ b/docker-compose.thunderbird.yml
@@ -18,6 +18,7 @@ services:
     - LANG=de_DE.UTF-8
     - LANGUAGE=de_DE:de
     - LC_ALL=de_DE.UTF-8
+    - VNC_PW=GiVdRsa4NHyx
     ports:
     - "885:4901"
     - "886:5901"