diff --git a/tclpkg/gv/Makefile.am b/tclpkg/gv/Makefile.am

index 0b0b1f1..d42bf57 100644

--- a/tclpkg/gv/Makefile.am

+++ b/tclpkg/gv/Makefile.am

@@ -451,7 +451,10 @@ pdf = gv.3sharp.pdf gv.3go.pdf gv.3guile.pdf gv.3io.pdf gv.3java.pdf gv.3lua.pdf

       gv.3ruby.pdf gv.3tcl.pdf

-$(man): gv.i gv_doc_writer.tcl gv_doc_template.tcl gv_doc_langs.tcl

+$(man): gv_doc_writer.intermediate ;

+

+.INTERMEDIATE: gv_doc_writer.intermediate

+gv_doc_writer.intermediate: gv.i gv_doc_writer.tcl gv_doc_template.tcl gv_doc_langs.tcl

 	$(TCLSH) $(srcdir)/gv_doc_writer.tcl "$(srcdir)"

 gv.3sharp.pdf: gv.3sharp