diff --git a/README b/README
index ac1e812..8c7301f 100644
--- a/README
+++ b/README
@@ -12,6 +12,7 @@ Prerequisites:
 	If you're not using a release tarball, you'll also need:
 	autoconf (autoreconf)
 	automake
+	Make sure you have a complete libtool install, including libtoolize
 
 Github repo for json-c:
   https://github.com/json-c/json-c