diff --git a/cliboa/scenario/transform/csv.py b/cliboa/scenario/transform/csv.py
index 26bd4559..6ba9bdfc 100644
--- a/cliboa/scenario/transform/csv.py
+++ b/cliboa/scenario/transform/csv.py
@@ -1060,7 +1060,8 @@ def execute(self, *args):
         )
         valid()
 
-        os.makedirs(self._dest_dir, exist_ok=True)
+        if self._dest_dir:
+            os.makedirs(self._dest_dir, exist_ok=True)
 
         files = super().get_target_files(self._src_dir, self._src_pattern)