diff --git a/doc/03-cli.md b/doc/03-cli.md
index 64d4839c2..218eb42d3 100644
--- a/doc/03-cli.md
+++ b/doc/03-cli.md
@@ -142,6 +142,7 @@ specific version.
 
 * **--installed:** Will list the packages that are installed.
 * **--platform:** Will list only platform packages (php & extensions).
+* **--dev:** Will include dev-required packages when combined with **--installed** or **--platform**.
 
 ## depends