diff --git a/oxrlib/config.py b/oxrlib/config.py
index 00f6eb3..c71c6cd 100644
--- a/oxrlib/config.py
+++ b/oxrlib/config.py
@@ -35,7 +35,9 @@ class Configuration:
         self.args = argparser.parse_args(arglist)
 
         if self.args.config_file is None:
-            self.args.config_file = [self.DEFAULT_CONFIG_PATH]
+            self.args.config_file = []
+            if self.DEFAULT_CONFIG_PATH.exists():
+                self.args.config_file.append(self.DEFAULT_CONFIG_PATH)
         self.conffile = self._build_conffile()
         conffile_paths = [path.as_posix() for path in self.args.config_file]
         read_files = self.conffile.read(conffile_paths)