--- papyon-0.4.5.orig/papyon/p2p.py
+++ papyon-0.4.5/papyon/p2p.py
@@ -156,7 +156,10 @@
         friendly = base64.b64decode(xml.unescape(element["Friendly"]))
         shad = element.get("SHA1D", None)
         if shad is not None:
-            shad = base64.b64decode(shad)
+            try:
+                shad = base64.b64decode(shad)
+            except TypeError:
+                logger.warning("Invalid SHA1D in MSNObject")
         shac = element.get("SHA1C", None)
         if shac is not None:
             try: