diff --git a/src/calibre/ebooks/pdb/ereader/reader132.py b/src/calibre/ebooks/pdb/ereader/reader132.py
index df98ce15b1..09e4b624e5 100644
--- a/src/calibre/ebooks/pdb/ereader/reader132.py
+++ b/src/calibre/ebooks/pdb/ereader/reader132.py
@@ -129,14 +129,22 @@ class Reader132(FormatReader):
             footnoteids = re.findall('\w+(?=\x00)', self.section_data(self.header_record.footnote_offset).decode('cp1252' if self.encoding is None else self.encoding))
             for fid, i in enumerate(range(self.header_record.footnote_offset + 1, self.header_record.footnote_offset + self.header_record.footnote_count)):
                 self.log.debug('Extracting footnote page %i' % i)
-                html += footnote_to_html(footnoteids[fid], self.decompress_text(i))
+                if fid < len(footnoteids):
+                    fid = footnoteids[fid]
+                else:
+                    fid = ''
+                html += footnote_to_html(fid, self.decompress_text(i))
 
         if self.header_record.sidebar_count > 0:
             html += '<br /><h1>%s</h1>' % _('Sidebar')
             sidebarids = re.findall('\w+(?=\x00)', self.section_data(self.header_record.sidebar_offset).decode('cp1252' if self.encoding is None else self.encoding))
             for sid, i in enumerate(range(self.header_record.sidebar_offset + 1, self.header_record.sidebar_offset + self.header_record.sidebar_count)):
                 self.log.debug('Extracting sidebar page %i' % i)
-                html += sidebar_to_html(sidebarids[sid], self.decompress_text(i))
+                if sid < len(sidebarids):
+                    sid = sidebarids[sid]
+                else:
+                    sid = ''
+                html += sidebar_to_html(sid, self.decompress_text(i))
 
         html += '</body></html>'
 
diff --git a/src/calibre/ebooks/pml/pmlconverter.py b/src/calibre/ebooks/pml/pmlconverter.py
index 89a495cfc6..7bb23946ca 100644
--- a/src/calibre/ebooks/pml/pmlconverter.py
+++ b/src/calibre/ebooks/pml/pmlconverter.py
@@ -749,7 +749,10 @@ def pml_to_html(pml):
 
 def footnote_sidebar_to_html(pre_id, id, pml):
     id = id.strip('\x01')
-    html = '<br /><br style="page-break-after: always;" /><div id="%s-%s"><p>%s</p><small><a href="#r%s-%s">return</a></small></div>' % (pre_id, id, pml_to_html(pml), pre_id, id)
+    if id.strip():
+        html = '<br /><br style="page-break-after: always;" /><div id="%s-%s">%s<small><a href="#r%s-%s">return</a></small></div>' % (pre_id, id, pml_to_html(pml), pre_id, id)
+    else:
+        html = '<br /><br style="page-break-after: always;" /><div>%s</div>' % pml_to_html(pml)
     return html
 
 def footnote_to_html(id, pml):