diff --git a/src/calibre/ebooks/mobi/reader.py b/src/calibre/ebooks/mobi/reader.py
index 95a05e69c0..5939b521ed 100644
--- a/src/calibre/ebooks/mobi/reader.py
+++ b/src/calibre/ebooks/mobi/reader.py
@@ -305,8 +305,10 @@ class MobiReader(object):
             self.read_embedded_metadata(root, metadata_elems[0], guide)
         for elem in guides + metadata_elems:
             elem.getparent().remove(elem)
+        fname = self.name.encode('ascii', 'replace')
+        fname = re.sub(r'[\x08\x15\0]+', '', fname)
         htmlfile = os.path.join(output_dir,
-                                sanitize_file_name(self.name)+'.html')
+                                sanitize_file_name(fname)+'.html')
         try:
             for ref in guide.xpath('descendant::reference'):
                 if ref.attrib.has_key('href'):