diff --git a/doc/README.build b/doc/README.build
index f0ab044788fb574d52f4525a46c3ea430f4e204a..6b1b11cea980d925ceecdcf639483d684372331e 100644
--- a/doc/README.build
+++ b/doc/README.build
@@ -17,8 +17,15 @@ This README is divided into the following topics of increasing specificity.
 
 To initialize the autotools, execute
 
+$ scripts/reconfigure
+
+or try
+
+$ libtoolize
 $ autoreconf -i
 
+(but on macOS glibtoolize might be needed instead of libtoolize).
+
 This is not required if you have obtained a regular, packaged source
 distribution of yaxt, but only in case you have directly accessed the
 repository.