diff --git a/markup/tasks.py b/markup/tasks.py
index afd672e..be3f318 100644
--- a/markup/tasks.py
+++ b/markup/tasks.py
@@ -65,6 +65,7 @@ def process_message(path):
 def process_attachment(from_address, subject, attachment):
     # write out pdf
     pdf_name = attachment.get_filename()
+    pdf_name = str(make_header(decode_header(pdf_name)))
     pdf_base = Path(pdf_name).stem
 
     workdir = os.path.join(WORKDIR, clean_path(from_address), pdf_base)