diff --git a/Makefile b/Makefile
index 0669c80a0..2d7d6d6e6 100644
--- a/Makefile
+++ b/Makefile
@@ -54,7 +54,8 @@ PAGES:=$(patsubst content/pages/%.xml, build/%.html, $(wildcard content/pages/*.
 # Seiten zu einzelnen News-Items:
 NEWS_PAGES:=$(patsubst content/news/%.xml, build/news/%.html, $(wildcard content/news/*.xml))
 # News-Index und Feeds:
-NEWSFILES:=build/news.html build/news-rss.xml build/news-atom.xml build/podcast.xml
+NEWSFILES:=build/news.html build/news-rss.xml build/news-atom.xml build/podcast.xml \
+	build/ical.ics build/xcal.xml
 # Datenspuren-Seiten:
 DS_PAGES:=$(patsubst content/datenspuren/%.xml, build/datenspuren/%.html, $(wildcard content/datenspuren/*.xml)) build/datenspuren/schedule.html
 # Suchseiten-Template