diff --git a/Library/Homebrew/cask/cmd/upgrade.rb b/Library/Homebrew/cask/cmd/upgrade.rb
index 86051ba96b..b3c87a60d8 100644
--- a/Library/Homebrew/cask/cmd/upgrade.rb
+++ b/Library/Homebrew/cask/cmd/upgrade.rb
@@ -16,7 +16,7 @@ module Cask
         [:switch, "--skip-cask-deps", {
           description: "Skip installing cask dependencies.",
         }],
-        [:switch, "--greedy", {
+        [:switch, "-g", "--greedy", {
           description: "Also include casks with `auto_updates true` or `version :latest`.",
         }],
         [:switch, "--greedy-latest", {
diff --git a/Library/Homebrew/cmd/outdated.rb b/Library/Homebrew/cmd/outdated.rb
index 256459c2d1..28186cce9a 100644
--- a/Library/Homebrew/cmd/outdated.rb
+++ b/Library/Homebrew/cmd/outdated.rb
@@ -36,7 +36,7 @@ module Homebrew
              description: "Fetch the upstream repository to detect if the HEAD installation of the " \
                           "formula is outdated. Otherwise, the repository's HEAD will only be checked for " \
                           "updates when a new stable or development version has been released."
-      switch "--greedy",
+      switch "-g", "--greedy",
              description: "Also include outdated casks with `auto_updates true` or `version :latest`."
 
       switch "--greedy-latest",