diff --git a/doc/scsh-manual/Makefile b/doc/scsh-manual/Makefile
index 3ada2a3..650c159 100644
--- a/doc/scsh-manual/Makefile
+++ b/doc/scsh-manual/Makefile
@@ -10,14 +10,14 @@ man.ind: man.idx
 man.pdf: $(TEX) man.ind
 
 .dvi.ps:
-	dvips -o $@ $<
+	dvips -j0 -o $@ $<
 
 .tex.dvi:
 	latex $<
 	rm $*.log
 
 .tex.pdf:
-	pdflatex $<
+	pdflatex $< && thumbpdf $@ && pdflatex $<
 	rm $*.log
 
 .idx.ind: