diff --git a/rhodecode/templates/files/files_source.html b/rhodecode/templates/files/files_source.html
--- a/rhodecode/templates/files/files_source.html
+++ b/rhodecode/templates/files/files_source.html
@@ -5,8 +5,8 @@
 		${h.form(h.url('files_diff_home',repo_name=c.repo_name,f_path=c.f_path),method='get')}
 		${h.hidden('diff2',c.file.changeset.raw_id)}
 		${h.select('diff1',c.file.changeset.raw_id,c.file_history)}
-		${h.submit('diff','diff to revision',class_="ui-btn")}
-		${h.submit('show_rev','show at revision',class_="ui-btn")}
+		${h.submit('diff',_('diff to revision'),class_="ui-btn")}
+		${h.submit('show_rev',_('show at revision'),class_="ui-btn")}
 		${h.end_form()}
 		</div>
 	</dd>