diff --git a/radicale/__main__.py b/radicale/__main__.py
index 6665f79..fabfab0 100644
--- a/radicale/__main__.py
+++ b/radicale/__main__.py
@@ -131,7 +131,6 @@ def serve(configuration, logger):
             with os.fdopen(pid_fd, "w") as pid_file:
                 pid_file.write(str(os.getpid()))
         # Decouple environment
-        os.umask(0)
         os.chdir("/")
         os.setsid()
         with open(os.devnull, "r") as null_in: