diff --git a/src/calibre/ebooks/oeb/transforms/trimmanifest.py b/src/calibre/ebooks/oeb/transforms/trimmanifest.py
index b3e9cd58e7..643ce47c4d 100644
--- a/src/calibre/ebooks/oeb/transforms/trimmanifest.py
+++ b/src/calibre/ebooks/oeb/transforms/trimmanifest.py
@@ -24,6 +24,7 @@ class ManifestTrimmer(object):
 
     def __call__(self, oeb, context):
         oeb.logger.info('Trimming unused files from manifest...')
+        self.opts = context
         used = set()
         for term in oeb.metadata:
             for item in oeb.metadata[term]:
@@ -63,5 +64,8 @@ class ManifestTrimmer(object):
             unchecked = new
         for item in oeb.manifest.values():
             if item not in used:
+                if getattr(self.opts, 'mobi_periodical', False) and \
+                        item.href == 'images/mastheadImage.gif':
+                    continue
                 oeb.logger.info('Trimming %r from manifest' % item.href)
                 oeb.manifest.remove(item)