all:
-       xsltproc -o book/ --xinclude /usr/share/sgml/docbook/stylesheet/xsl/docbook-xsl/html/chunk.xsl API.xml
+       xsltproc --stringparam chunker.output.encoding "utf-8" -o book/ --xinclude /usr/share/sgml/docbook/xsl-stylesheets/html/chunk.xsl API.xml
 
 clean:
        rm book/*html