--- fop-2.5/fop/build.xml
+++ fop-2.5/fop/build.xml
@@ -904,6 +904,7 @@ NOTE:
       doctitle="Apache Formatting Objects Processor (FOP)"
       bottom="Copyright ${year} The Apache Software Foundation. All Rights Reserved."
       overview="${src.java.dir}/org/apache/fop/overview.html"
+      additionalparam="--allow-script-in-comments"
       maxmemory="256M">
       <header><![CDATA[${name} ${version}]]></header>
       <footer><![CDATA[${name} ${version}]]></footer>