--- a/src/VBox/Main/webservice/Makefile.kmk	2013-11-21 19:00:46.812761628 +0100
+++ b/src/VBox/Main/webservice/Makefile.kmk	2014-01-04 04:37:05.803599026 +0100
@@ -683,7 +683,7 @@
 : $(VBOXWEB_GSOAPH_FROM_GSOAP) $(VBOXWEB_GSOAPH_FROM_XSLT) $(VBOX_NSMAP) $(RECOMPILE_ON_MAKEFILE_CURRENT) | $$(dir $$@)
 	$(call MSG_GENERATE,,lots of files,$(GSOAPH_RELEVANT))
 	$(RM) -f $@
-	$(REDIRECT) -C $(VBOXWEB_OUT_DIR) -- $(VBOX_SOAPCPP2) $(VBOXWEB_SOAPCPP2_SKIP_FILES) -L -2 -w -I$(VBOX_PATH_GSOAP_IMPORT) $(GSOAPH_RELEVANT)
+	$(REDIRECT) -C $(VBOXWEB_OUT_DIR) -- $(VBOX_SOAPCPP2) $(VBOXWEB_SOAPCPP2_SKIP_FILES) -z1 -L -2 -w -I$(VBOX_PATH_GSOAP_IMPORT) $(GSOAPH_RELEVANT)
 	$(APPEND) $@ done
 
 # copy the generated headers and stuff. This has to be a separate rule if we
