diff --git a/railties/lib/rails/generators/app_base.rb b/railties/lib/rails/generators/app_base.rb
index <HASH>..<HASH> 100644
--- a/railties/lib/rails/generators/app_base.rb
+++ b/railties/lib/rails/generators/app_base.rb
@@ -86,10 +86,10 @@ module Rails
                                            desc: "Skip bootsnap gem"
 
         class_option :dev,                 type: :boolean, default: false,
-                                           desc: "Setup the #{name} with Gemfile pointing to your Rails checkout"
+                                           desc: "Set up the #{name} with Gemfile pointing to your Rails checkout"
 
         class_option :edge,                type: :boolean, default: false,
-                                           desc: "Setup the #{name} with Gemfile pointing to Rails repository"
+                                           desc: "Set up the #{name} with Gemfile pointing to Rails repository"
 
         class_option :rc,                  type: :string, default: nil,
                                            desc: "Path to file containing extra configuration options for rails command"
minor grammar fix

"setup" is a noun, "set up" is the verb phrase