diff --git a/README-prereq b/README-prereq
index 66688dc..48c140f 100644
--- a/README-prereq
+++ b/README-prereq
@@ -31,6 +31,7 @@ set correctly by running this command:
 
   # Note Autoconf 2.62 or newer is needed to build automake-1.11.1
   git clone --depth=1 git://git.sv.gnu.org/autoconf.git
+  cd autoconf
   git checkout v2.62
   autoreconf -vi
   ./configure --prefix=$prefix