--- Makefile.in	2014-04-14 04:29:46.000000000 +0200
+++ Makefile.in.new	2014-06-15 15:32:23.392644000 +0200
@@ -252,7 +252,11 @@
 	perl xmldoc/makedoc
 	xmlwf xmldoc/readme.xml		#check for well-formedness
 	xmllint --noout --valid xmldoc/readme.xml    	#validate
-	xsltproc -o $@ xmldoc/babelpdf.xsl xmldoc/readme.xml
+	xsltproc \
+	  -o $@ \
+	  --stringparam  paper.type  A4 \
+	  xmldoc/babelpdf.xsl \
+	  xmldoc/readme.xml
 
 gpsbabel.pdf: gpsbabel.fo
 	fop -q -fo gpsbabel.fo -pdf gpsbabel.pdf 
