diff --git a/src/update-xslfeed b/src/update-xslfeed
index 8d46ba4..dfc20cc 100644
--- a/src/update-xslfeed
+++ b/src/update-xslfeed
@@ -1,11 +1,14 @@
 #!/bin/sh
 
 get-feeds
-combine-md-files Feeds $HOME/xslfeed/feeds/* > $HOME/xslfeed/feeds.md
 
 for file in $HOME/xslfeed/feeds/* 
 do
-	mark-new-feed-entries $file > $file
+	other_file="$file.prev"
+	cp $file $other_file
+	mark-new-feed-entries $other_file > $file
+	rm $other_file
 done
 
+combine-md-files Feeds $HOME/xslfeed/feeds/* > $HOME/xslfeed/feeds.md
 generate-website-from-md $HOME/xslfeed/feeds.md /etc/xslfeed/style.css