diff --git a/Library/Homebrew/cli_parser.rb b/Library/Homebrew/cli_parser.rb
index 54d3297054..160071f87f 100644
--- a/Library/Homebrew/cli_parser.rb
+++ b/Library/Homebrew/cli_parser.rb
@@ -162,6 +162,8 @@ module Homebrew
             end
           end
         end
+      rescue FormulaUnavailableError
+        []
       end
 
       def hide_from_man_page!