--- a/documents/datagov.py
+++ b/documents/datagov.py
@@ -39,7 +39,9 @@
                                     link = item.find("a")
                                     format = item.find(property="dc:format")
                                     linkobj = {"href":link['href'].replace("/bye?","").strip(),
-                                            "format": format.string.strip(), "size": format.next_sibling.string.strip()}
+                                            "format": format.string.strip()}
+				    if format.next_sibling.string != None:
+					linkobj["size"] = format.next_sibling.string.strip()
                                     if link.string != None:
                                         linkobj["name"] = link.string.strip()
                                     doc['metadata'][last_title].append(linkobj)