diff --git a/src/byteb4rb1e/sphinxcontrib/ext/html_static_archive/__init__.py b/src/byteb4rb1e/sphinxcontrib/ext/html_static_archive/__init__.py
index b722588..3c4eb85 100644
--- a/src/byteb4rb1e/sphinxcontrib/ext/html_static_archive/__init__.py
+++ b/src/byteb4rb1e/sphinxcontrib/ext/html_static_archive/__init__.py
@@ -48,6 +48,8 @@ def on_env_updated(
 ):
     """
     """
+    static_dir = Path(app.outdir) / '_static'
+
     for url, fh in _static_archives.items():
         modes = {
             'application/x-tar': 'r',
@@ -67,12 +69,11 @@ def on_env_updated(
             if file.isdir():
                 continue
 
-            shadow_file = Path(app.outdir) / '_static' / file.name
+            shadow_file = static_dir / file.name
 
             if not shadow_file.exists():
                 logger.info(f'html_static_archive (extract): {url}::{file.name}')
-                shadow_file.parent.mkdir(parents=True)
-                archive.extract(file, path=shadow_file)
+                archive.extract(file, path=static_dir, filter='data')
 
         archive.close()
         fh.close()