diff --git a/Makefile b/Makefile
index 9c67a5b91..4ed32893d 100644
--- a/Makefile
+++ b/Makefile
@@ -160,9 +160,8 @@ build/cgi-bin/search.html: content/cgi-bin/search.xml $(STYLE) $(NAVIGATION) $(D
 build/datenspuren/%html : STYLE=$(DS_STYLE)
 build/datenspuren/%.html: content/datenspuren/%.xml $(DS_STYLE)
 	$(call xml_process)
+build/datenspuren/schedule.html : NOVALID_IGNORE:=true
 
-content/datenspuren/schedule.xml:
-	rm $@
 #content/datenspuren/schedule.xml: content/static/datenspuren/fahrplan/days.de.html
 #	cp $< $@