diff --git a/Makefile b/Makefile
index f57274d2..9f33d27b 100644
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,7 @@ stylesheet = clonk.xsl
 sdk-dirs := $(shell find sdk -name '.*' -prune -o -type d -print)
 
 # misc
-extra-files := $(sort $(wildcard *.css *.php *.js images/*.*) index.html)
+extra-files := $(sort $(wildcard *.css *.php *.js images/*.*))
 extra-files-chm := $(sort $(wildcard *.css *.js images/*.*))
 
 # find all *.xml files recursively in sdk/