diff --git a/msdos/ChangeLog b/msdos/ChangeLog
index 77aa53ec274..96a5e79b13a 100644
--- a/msdos/ChangeLog
+++ b/msdos/ChangeLog
@@ -2,6 +2,7 @@
 
 	* autogen/config.in:
 	* autogen/Makefile.in: Move here from ../autogen.
+	* mainmake.v2: Use msdos/autogen rather than autogen.
 
 2013-05-15  Stefan Monnier  <monnier@iro.umontreal.ca>
 
diff --git a/msdos/mainmake.v2 b/msdos/mainmake.v2
index c0686deeb89..81e85a07165 100644
--- a/msdos/mainmake.v2
+++ b/msdos/mainmake.v2
@@ -64,13 +64,13 @@ MAKESHELL=/xyzzy/command
 top_srcdir := $(subst \,/,$(shell cd))
 
 # Q: Do we need to bootstrap?
-# A: Only if we find msdos/autogen/README, i.e. we are building out of
+# A: Only if we find msdos/autogen/Makefile.in, i.e. we are building out of
 #    a VCS-checkout (not a release), and src/b-emacs.exe does not exist.
 #    This avoids building a bootstrap-emacs and recompiling Lisp files
 #    when building a pretest/release tarball.  Recompiling Lisp files
 #    is BAD because lisp/Makefile.in requires a Unixy shell.
 boot :=
-ifneq ($(wildcard msdos/autogen/README),)
+ifneq ($(wildcard msdos/autogen/Makefile.in),)
 ifeq ($(wildcard src/b-emacs.exe),)
 boot := b-emacs.exe
 endif