diff --git a/doc/Makefile.am b/doc/Makefile.am
index c457a26bc..a1645f5a4 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -94,8 +94,9 @@ doc_DATA += $(STANDARD)
 EXTRA_DIST += descriptions.txt releases.txt sane-logo2.jpg sane-logo.png \
   sane.png
 
-TI_LATEX = TEXINPUTS="$(srcdir):$$TEXINPUTS" $(LATEX)
-TI_DLH   = TEXINPUTS="$(srcdir):$$TEXINPUTS" dlh
+TI_LATEX = TEXINPUTS="$(builddir):$(srcdir):$$TEXINPUTS" $(LATEX)
+TI_DVIPS = TEXINPUTS="$(builddir):$(srcdir):$$TEXINPUTS" $(DVIPS)
+TI_DLH   = TEXINPUTS="$(builddir):$(srcdir):$$TEXINPUTS" dlh
 MAN2HTML = nroff -c -man |\
 	  man2html -compress -topm 6 -botm 6 -nodepage -title $${page} \
           -cgiurl '$$title.$$section.html'|\
@@ -245,7 +246,7 @@ sane.dvi: sane.ind
 
 sane.ps: sane.dvi
 	@echo Generating sane.ps from sane.dvi...
-	@$(DVIPS) sane.dvi -o sane.ps 2>/dev/null
+	@$(TI_DVIPS) sane.dvi -o sane.ps 2>/dev/null
 
 sane-html: sane.dvi
 	$(TI_DLH) $(srcdir)/sane.tex
diff --git a/doc/Makefile.in b/doc/Makefile.in
index 90fa2de83..3d85f07ee 100644
--- a/doc/Makefile.in
+++ b/doc/Makefile.in
@@ -428,8 +428,9 @@ doc_DATA = $(HTML_PAGES) $(STANDARD)
 @USE_LATEX_TRUE@STANDARD = sane.ps
 dist_doc_DATA = backend-writing.txt
 nobase_dist_doc_DATA = $(BEDOCS)
-TI_LATEX = TEXINPUTS="$(srcdir):$$TEXINPUTS" $(LATEX)
-TI_DLH = TEXINPUTS="$(srcdir):$$TEXINPUTS" dlh
+TI_LATEX = TEXINPUTS="$(builddir):$(srcdir):$$TEXINPUTS" $(LATEX)
+TI_DVIPS = TEXINPUTS="$(builddir):$(srcdir):$$TEXINPUTS" $(DVIPS)
+TI_DLH = TEXINPUTS="$(builddir):$(srcdir):$$TEXINPUTS" dlh
 MAN2HTML = nroff -c -man |\
 	  man2html -compress -topm 6 -botm 6 -nodepage -title $${page} \
           -cgiurl '$$title.$$section.html'|\
@@ -962,7 +963,7 @@ sane.dvi: sane.ind
 
 sane.ps: sane.dvi
 	@echo Generating sane.ps from sane.dvi...
-	@$(DVIPS) sane.dvi -o sane.ps 2>/dev/null
+	@$(TI_DVIPS) sane.dvi -o sane.ps 2>/dev/null
 
 sane-html: sane.dvi
 	$(TI_DLH) $(srcdir)/sane.tex