diff --git a/lib/xcodeproj/project/object/build_phase.rb b/lib/xcodeproj/project/object/build_phase.rb
index c9505aeea..25040aee4 100644
--- a/lib/xcodeproj/project/object/build_phase.rb
+++ b/lib/xcodeproj/project/object/build_phase.rb
@@ -30,6 +30,12 @@ class AbstractBuildPhase < AbstractObject
         #
         attribute :run_only_for_deployment_postprocessing, String, '0'
 
+        # @return [String] Comments associated with this build phase.
+        #
+        #   This is apparently no longer used by Xcode.
+        #
+        attribute :comments, String
+
       end
 
       #-----------------------------------------------------------------------#
diff --git a/lib/xcodeproj/project/object/group.rb b/lib/xcodeproj/project/object/group.rb
index 3a1fb8545..44d1825d3 100644
--- a/lib/xcodeproj/project/object/group.rb
+++ b/lib/xcodeproj/project/object/group.rb
@@ -57,6 +57,12 @@ class PBXGroup < AbstractObject
         #
         attribute :wraps_lines, String
 
+        # @return [String] Comments associated with this group.
+        #
+        #   This is apparently no longer used by Xcode.
+        #
+        attribute :comments, String
+
         #-----------------------------------------------------------------------#
 
         # @!group Helpers
diff --git a/lib/xcodeproj/project/object/native_target.rb b/lib/xcodeproj/project/object/native_target.rb
index 1f40ebe39..1ef2d0e14 100644
--- a/lib/xcodeproj/project/object/native_target.rb
+++ b/lib/xcodeproj/project/object/native_target.rb
@@ -14,6 +14,12 @@ class AbstractTarget < AbstractObject
         #
         attribute :product_name, String
 
+        # @return [String] Comments associated with this target.
+        #
+        #   This is apparently no longer used by Xcode.
+        #
+        attribute :comments, String
+
         # @return [XCConfigurationList] the list of the build configurations of
         #         the target. This list commonly include two configurations
         #         `Debug` and `Release`.
diff --git a/spec/project/object/build_phase_spec.rb b/spec/project/object/build_phase_spec.rb
index f30589c0c..69f7520b5 100644
--- a/spec/project/object/build_phase_spec.rb
+++ b/spec/project/object/build_phase_spec.rb
@@ -20,6 +20,10 @@ module ProjectSpecs
       @phase.run_only_for_deployment_postprocessing.should == "0"
     end
 
+    it "is initialized with empty comments" do
+      @phase.comments.should.be.nil
+    end
+
     it "can add a file reference to its build files" do
       file = @project.new_file('some/file')
       @phase.add_file_reference(file)