diff --git a/README.md b/README.md
index 91260f6..44142a6 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 # pw -- Password generator
 
+A highly configurable password generator for Linux, macOS, and OpenBSD, written
+in C++.
+
 ## Quick start
 
 ### Build