diff --git a/README.md b/README.md
index c537f3d..d6244b5 100644
--- a/README.md
+++ b/README.md
@@ -31,3 +31,13 @@ COMMAND should be one of:
    black
    rainbow
 ```
+
+## Building
+
+Clone the github repo and enter the top-level directory.  Then:
+
+```sh
+autoreconf
+./configure
+make
+```