diff --git a/Library/Homebrew/cmd/help.rb b/Library/Homebrew/cmd/help.rb
index a5ad86a32e..67cde272bb 100644
--- a/Library/Homebrew/cmd/help.rb
+++ b/Library/Homebrew/cmd/help.rb
@@ -7,6 +7,7 @@ Example usage:
   brew list [FORMULA...]
   brew update
   brew upgrade [FORMULA...]
+  brew pin/unpin [FORMULA...]
 
 Troubleshooting:
   brew doctor