diff --git a/.docker/tester_pycaosdb.ini b/.docker/tester_pycaosdb.ini
index 38247085d7c6ba681f7ed9b1553d76818109711a..2159dec250b3dcb2f16043d12bdbe73675e4d75c 100644
--- a/.docker/tester_pycaosdb.ini
+++ b/.docker/tester_pycaosdb.ini
@@ -25,7 +25,7 @@ username = admin
 cacert = /cert/caosdb.cert.pem
 debug = 0
 
-passwordmethod = plain
+password_method = plain
 password = caosdb
 
 timeout = 500