diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2c9eefad0..d213d93dc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@
 
 ##### Enhancements
 
+* Add new Messages application product types to constants.  
+  [Ben Asher](https://github.com/benasher44)
+  [#400](https://github.com/CocoaPods/Xcodeproj/pull/400)
+
 * Add support for identify the host of an embedded target,
   when the embedded target belongs to a sub-project  
   [Ben Asher](https://github.com/benasher44)
diff --git a/lib/xcodeproj/constants.rb b/lib/xcodeproj/constants.rb
index 9b6733c42..92a5ef3e8 100644
--- a/lib/xcodeproj/constants.rb
+++ b/lib/xcodeproj/constants.rb
@@ -106,23 +106,24 @@ module Constants
     # @return [Hash] The uniform type identifier of various product types.
     #
     PRODUCT_TYPE_UTI = {
-      :application        => 'com.apple.product-type.application',
-      :framework          => 'com.apple.product-type.framework',
-      :dynamic_library    => 'com.apple.product-type.library.dynamic',
-      :static_library     => 'com.apple.product-type.library.static',
-      :bundle             => 'com.apple.product-type.bundle',
-      :octest_bundle      => 'com.apple.product-type.bundle',
-      :unit_test_bundle   => 'com.apple.product-type.bundle.unit-test',
-      :ui_test_bundle     => 'com.apple.product-type.bundle.ui-testing',
-      :app_extension      => 'com.apple.product-type.app-extension',
-      :command_line_tool  => 'com.apple.product-type.tool',
-      :watch_app          => 'com.apple.product-type.application.watchapp',
-      :watch2_app         => 'com.apple.product-type.application.watchapp2',
-      :watch_extension    => 'com.apple.product-type.watchkit-extension',
-      :watch2_extension   => 'com.apple.product-type.watchkit2-extension',
-      :tv_extension       => 'com.apple.product-type.tv-app-extension',
-      :messages_extension => 'com.apple.product-type.app-extension.messages',
-      :sticker_pack       => 'com.apple.product-type.app-extension.messages-sticker-pack',
+      :application          => 'com.apple.product-type.application',
+      :framework            => 'com.apple.product-type.framework',
+      :dynamic_library      => 'com.apple.product-type.library.dynamic',
+      :static_library       => 'com.apple.product-type.library.static',
+      :bundle               => 'com.apple.product-type.bundle',
+      :octest_bundle        => 'com.apple.product-type.bundle',
+      :unit_test_bundle     => 'com.apple.product-type.bundle.unit-test',
+      :ui_test_bundle       => 'com.apple.product-type.bundle.ui-testing',
+      :app_extension        => 'com.apple.product-type.app-extension',
+      :command_line_tool    => 'com.apple.product-type.tool',
+      :watch_app            => 'com.apple.product-type.application.watchapp',
+      :watch2_app           => 'com.apple.product-type.application.watchapp2',
+      :watch_extension      => 'com.apple.product-type.watchkit-extension',
+      :watch2_extension     => 'com.apple.product-type.watchkit2-extension',
+      :tv_extension         => 'com.apple.product-type.tv-app-extension',
+      :messages_application => 'com.apple.product-type.application.messages',
+      :messages_extension   => 'com.apple.product-type.app-extension.messages',
+      :sticker_pack         => 'com.apple.product-type.app-extension.messages-sticker-pack',
     }.freeze
 
     # @return [Hash] The extensions or the various product UTIs.
diff --git a/spec/project/object/native_target_spec.rb b/spec/project/object/native_target_spec.rb
index dc4c5335c..2663180e6 100644
--- a/spec/project/object/native_target_spec.rb
+++ b/spec/project/object/native_target_spec.rb
@@ -605,6 +605,9 @@ module ProjectSpecs
         it 'returns false for non-extension target types' do
           @target.stubs(:symbol_type => :application)
           @target.should.not.be.extension_target_type
+
+          @target.stubs(:symbol_type => :messages_application)
+          @target.should.not.be.extension_target_type
         end
       end