diff --git a/Doc/Makefile b/Doc/Makefile
index 06d9aa60611737264fe46d0c3d7730d3a04d0823..8bf8639453aabcbe10cbe45c44d7d397fd357654 100644
--- a/Doc/Makefile
+++ b/Doc/Makefile
@@ -36,7 +36,7 @@ videoformats:$(mp4Set)
 
 all: ${BUILDROOT}/stage1
 	cd ${BUILDROOT}; tar c- ${DOCMODULES} | tar -x -C . #webhelp
-	cd ${BUILDROOT};zip -r webhelp/lectures.zip webhelp Slides extern -x webhelp/lectures.zip
+	cd ${BUILDROOT};zip -r webhelp/lectures.zip webhelp Slides ${DOCMODULES} extern -x webhelp/lectures.zip
 
 ${BUILDROOT}/${SCRIPTBASENAME}_print.xml \
 ${BUILDROOT}/${SCRIPTBASENAME}.xml: ${SCRIPTBASENAME}.xml Common/glossary.xml Common/bibliography.xml