diff --git a/ws/Docbook/CustomLayer/lib/xslthl_npe_patch-2.1.3.jar b/ws/Docbook/CustomLayer/lib/xslthl_npe_patch-2.1.3.jar
new file mode 100644
index 0000000000000000000000000000000000000000..588116a585fbc49b05afdd9eadad4dd56eff119b
Binary files /dev/null and b/ws/Docbook/CustomLayer/lib/xslthl_npe_patch-2.1.3.jar differ
diff --git a/ws/Docbook/Preprocess/make.rules b/ws/Docbook/Preprocess/make.rules
index a28590000dcf1a874a35510232fe9a1a5393cb1f..fec82a6bb28a422400928b92a84fee90f6abbbc0 100644
--- a/ws/Docbook/Preprocess/make.rules
+++ b/ws/Docbook/Preprocess/make.rules
@@ -63,7 +63,7 @@ set       toc,title' \
 webhelp.base.dir=.
 
 # Required for docbook Xsl 1.0 based stylesheets
-SAXON6CMD=java -cp "${DBOOK_XSL}/extensions/saxon65.jar:${DBOOK_XSL}/tools/lib/saxon.jar:${DBOOK}/lib/xslthl-2.1.3.jar" \
+SAXON6CMD=java -cp "${DBOOK_XSL}/extensions/saxon65.jar:${DBOOK_XSL}/tools/lib/saxon.jar:${DBOOK_XSL_CUSTOM}/lib/xslthl_npe_patch-2.1.3.jar" \
           '-Dxslthl.config=file://${DBOOK_XSL}/highlighting/xslthl-config.xml' \
           com.icl.saxon.StyleSheet