diff --git a/exporter-ng.py b/exporter-ng.py
index 4d00ab5..fc5f712 100644
--- a/exporter-ng.py
+++ b/exporter-ng.py
@@ -306,7 +306,7 @@ class SlackMessage:
 class SlackExporter:
     """Główna klasa eksportera"""
 
-    def __init__(self, config: SlackConfig, output_dir: str):
+    def __init__(self, config: SlackConfig, output_dir: str = 'out'):
         self.api = SlackAPI(config)
         self.timestamp = datetime.now().strftime("%Y-%m-%d_%H%M%S")
         self.output_dir = self._set_output_dir(output_dir)
@@ -434,4 +434,4 @@ class SlackExporter:
 
 if __name__ == "__main__":
     config = SlackConfig.from_env()
-    exporter = SlackExporter(config, 'out')
+    exporter = SlackExporter(config)