diff --git a/pelican/tools/pelican_import.py b/pelican/tools/pelican_import.py
index 8f50d004..f85e7a3c 100755
--- a/pelican/tools/pelican_import.py
+++ b/pelican/tools/pelican_import.py
@@ -30,7 +30,7 @@ except ImportError:
 logger = logging.getLogger(__name__)
 
 
-def decode_wp_content(content, attached_files, br=True):
+def decode_wp_content(content, attached_files=None, br=True):
     pre_tags = {}
     if content.strip() == "":
         return ""