diff --git a/wbz.py b/wbz.py
index c8a6e60..f49a39c 100644
--- a/wbz.py
+++ b/wbz.py
@@ -97,6 +97,7 @@ def get_output_szs_filepath(input_wbz_filepath, dest_dirname=None):
         if dest_dirname is None:
             output_szs_filepath = input_wbz_filepath.with_suffix(".szs")
         else:
+            pathlib.Path(dest_dirname).mkdir(parents=True, exist_ok=True)
             output_szs_filepath = pathlib.Path(f"{dest_dirname}/{input_wbz_filepath.with_suffix('.szs').name}")
 
         return output_szs_filepath