$(call cmd,db2pdf)
 
 
-main_idx = Documentation/DocBook/index.html
+index = index.html
+main_idx = Documentation/DocBook/$(index)
 build_main_index = rm -rf $(main_idx) && \
                   echo '<h1>Linux Kernel HTML Documentation</h1>' >> $(main_idx) && \
                   echo '<h2>Kernel Version: $(KERNELVERSION)</h2>' >> $(main_idx) && \
        $(patsubst %.xml, %.pdf,  $(DOCBOOKS)) \
        $(patsubst %.xml, %.html, $(DOCBOOKS)) \
        $(patsubst %.xml, %.9,    $(DOCBOOKS)) \
-       $(C-procfs-example)
+       $(C-procfs-example) $(index)
 
 clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man