diff --git a/doc/00-intro.md b/doc/00-intro.md
index 6e0b5a1c8..0496390ca 100644
--- a/doc/00-intro.md
+++ b/doc/00-intro.md
@@ -142,7 +142,7 @@ Create a new `composer.bat` file alongside `composer.phar`:
 C:\bin>echo @php "%~dp0composer.phar" %*>composer.bat
 ```
 
-Add the directory to your path environment.
+Add the directory to your PATH environment variable if it isn't already.
 
 Close your current terminal. Test usage with a new terminal: