diff --git a/README.md b/README.md
index 8bd10e4..e8ac50c 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 This is a very simple, but cryptographically decent, password generator.
 
-Click on the extension icon, and it makes a password of length 12
+Click on the extension icon, and it makes a password of length 12.
 You can dial the length up or down and tell it not to include certain character classes,
 and the password is updated automatically.