diff --git a/LDP/users/Peter-Bieringer/generate.sh b/LDP/users/Peter-Bieringer/generate.sh
index 2959d123..872e8ba9 100755
--- a/LDP/users/Peter-Bieringer/generate.sh
+++ b/LDP/users/Peter-Bieringer/generate.sh
@@ -4,6 +4,7 @@
 # 20020128/PB: change PDF generation to LDP conform one, PS is still not LDP conform
 # 20070401/PB: disable sgmlfixer (no longer needed)
 #              add support for XML file, replace nsgmls by onsgmls
+# 20090214/PB: remove </?dummy> tag from SGML, onsgmls don't like it
 
 # $Id$
 
@@ -105,6 +106,9 @@ validate_sgml() {
 		fi
 	fi
 
+	# remove tags <dummy>, </dummy>
+	perl -pi -e 's|</?dummy>||g' "$file_input"
+
 	echo "INF: Validate SGML/XML code '$file_input'"
 	if [ "$doctype" = "XML" ]; then
 		local options="$file_xmldcl"