2 files changed, 2 insertions, 2 deletions
diff --git a/railties/lib/rails/generators/rails/app/app_generator.rb b/railties/lib/rails/generators/rails/app/app_generator.rb
index 899b33e529..1047a2c429 100644
--- a/railties/lib/rails/generators/rails/app/app_generator.rb
+++ b/railties/lib/rails/generators/rails/app/app_generator.rb
@@ -319,7 +319,7 @@ module Rails
         if app_const =~ /^\d/
           raise Error, "Invalid application name #{app_name}. Please give a name which does not start with numbers."
         elsif RESERVED_NAMES.include?(app_name)
-          raise Error, "Invalid application name #{app_name}. Please give a name which does not match one of the reserved rails words."
+          raise Error, "Invalid application name #{app_name}. Please give a name which does not match one of the reserved rails words: #{RESERVED_NAMES}"
         elsif Object.const_defined?(app_const_base)
           raise Error, "Invalid application name #{app_name}, constant #{app_const_base} is already in use. Please choose another application name."
         end
diff --git a/railties/lib/rails/generators/rails/plugin/plugin_generator.rb b/railties/lib/rails/generators/rails/plugin/plugin_generator.rb
index fe19fa38d7..7f5bf0c8b8 100644
--- a/railties/lib/rails/generators/rails/plugin/plugin_generator.rb
+++ b/railties/lib/rails/generators/rails/plugin/plugin_generator.rb
@@ -364,7 +364,7 @@ task default: :test
         elsif camelized =~ /^\d/
           raise Error, "Invalid plugin name #{original_name}. Please give a name which does not start with numbers."
         elsif RESERVED_NAMES.include?(name)
-          raise Error, "Invalid plugin name #{original_name}. Please give a name which does not match one of the reserved rails words."
+          raise Error, "Invalid plugin name #{original_name}. Please give a name which does not match one of the reserved rails words: #{RESERVED_NAMES}"
         elsif Object.const_defined?(camelized)
           raise Error, "Invalid plugin name #{original_name}, constant #{camelized} is already in use. Please choose another plugin name."
         end