diff --git a/make/htdocs.mk b/make/htdocs.mk
index bf8df1a1..7f4772fd 100644
--- a/make/htdocs.mk
+++ b/make/htdocs.mk
@@ -1,13 +1,18 @@
-# generic utility modules
-# (c) 2001 jannet it services
-# contact@jannet.de
-# $Id$
+LESS_SRC                  ?= $(wildcard *.less)
+LESS_GENERATED_CSS        ?= $(patsubst %.less,%.css,$(LESS_SRC))
+LESS_CPY                  ?= lesscpy
 
 include $(MODDIR)/make/defs.mk
 include $(MODDIR)/make/rules.mk
 
-all:
+all: $(LESS_GENERATED_CSS)
 install: install_HTML
-clean: textclean localclean doneclean
+clean: textclean localclean doneclean clean.lesscpy
 test:
 
+%.css: %.less
+	$(LESS_CPY) $< > $@.tmp
+	mv $@.tmp $@
+
+clean.lesscpy:
+	rm -f $(LESS_GENERATED_CSS) *.tmp