diff --git a/INSTALL b/INSTALL
index 39d3f818d..b22721d34 100644
--- a/INSTALL
+++ b/INSTALL
@@ -96,11 +96,12 @@ http://nlnetlabs.nl/projects/ldns/
 Autoconf:
 
 If you modify configure.ac or configure doesn't exist (eg if you checked
-the code out of git yourself) then you will need autoconf-2.69 to rebuild
-the automatically generated files by running "autoreconf".  Earlier
-versions may also work but this is not guaranteed.
+the code out of git yourself) then you will need autoconf-2.69 and
+automake-1.16.1 to rebuild the automatically generated files by running
+"autoreconf".  Earlier versions may also work but this is not guaranteed.
 
 http://www.gnu.org/software/autoconf/
+http://www.gnu.org/software/automake/
 
 Basic Security Module (BSM):