diff --git a/README.md b/README.md
index 88edd0a..4374399 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ Git: <https://github.com/sugarcrm/shadow>
 PHP module
 ==========
 
-Shadow is implemented as PHP extension. Compile it using:
+Shadow is implemented as a PHP extension. Compile it using:
 
 ```bash
 phpize