diff --git a/pylons_app/templates/files/files_annotate.html b/pylons_app/templates/files/files_annotate.html
--- a/pylons_app/templates/files/files_annotate.html
+++ b/pylons_app/templates/files/files_annotate.html
@@ -30,6 +30,8 @@
 						h.url('files_annotate_home',repo_name=c.repo_name,revision=c.file.last_changeset._short,f_path=c.f_path))} </dd>
 				<dt>${_('Size')}</dt>
 				<dd>${h.format_byte_size(c.file.size,binary=True)}</dd>
+    			<dt>${_('Mimetype')}</dt>
+				<dd>${c.file.mimetype}</dd>				
 				<dt>${_('Options')}</dt>
 				<dd>${h.link_to(_('show source'),
 						h.url('files_home',repo_name=c.repo_name,revision=c.cur_rev,f_path=c.f_path))}