diff --git a/README.txt b/README.txt
index 862d825..167a766 100644
--- a/README.txt
+++ b/README.txt
@@ -6,6 +6,11 @@ A toy analog clock for my kids to learn to set and read clocks.
 Developed on LÖVE v11.4 (https://love2d.org/), but may work on
 earlier versions.
 
+BUILDING
+----------
+
+To build a Windows distribution, run build.ps1 in PowerShell.
+
 LICENSE
 ---------