diff --git a/mpsd-software-environment.py b/mpsd-software-environment.py
index b6f79f4e986b2d865eeba47bb1558dc9bb633922..e4b9858bf5fcf5167d6af88a7dde713d16df36bb 100755
--- a/mpsd-software-environment.py
+++ b/mpsd-software-environment.py
@@ -32,7 +32,7 @@ config_vars = {
 }
 
 
-def set_up_logging(loglevel="warning", filename="test.log"):
+def set_up_logging(loglevel="warning", filename=None):
     """Set up logging.
 
     This function sets up the logging configuration for the script.