diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index 54df508e13c..3cb96fe8fbe 100644
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -2,6 +2,7 @@
 
 	* Makefile.in (dvi, pdf, $(infodir)): New targets.
 	($(infodir)/elisp): Ensure target directory exists.  Use $@.
+	Fix -I typo.
 	(clean): No 'make.out' or 'core' files.
 	(.PHONY): Declare clean rules.
 	(maintainer-clean): Delete pdf file.  Guard against cd failures.
diff --git a/doc/lispref/Makefile.in b/doc/lispref/Makefile.in
index 472cc5b1406..7ef19febbad 100644
--- a/doc/lispref/Makefile.in
+++ b/doc/lispref/Makefile.in
@@ -100,9 +100,8 @@ pdf: elisp.pdf
 $(infodir):
 	mkdir $@
 
-## FIXME ? -I$infodir is that right, or should it be texinfodir?
 $(infodir)/elisp: $(infodir) $(srcs)
-	cd $(srcdir); $(MAKEINFO) -I. -I$(infodir) elisp.texi -o $@
+	cd $(srcdir); $(MAKEINFO) -I. -I$(texinfodir) elisp.texi -o $@
 
 elisp.dvi: $(srcs)
 	$(TEXI2DVI) -I $(srcdir) -I $(texinfodir) $(srcdir)/elisp.texi