diff --git a/NEWS b/NEWS
index cc8124ee..d7282702 100644
--- a/NEWS
+++ b/NEWS
@@ -16,6 +16,8 @@
   * [iOS] Fixed where `rake retina=3.5' does not work with Xcode 5 DP-2.
   * [iOS] Fixed a bug where `rake' command would re-launch an iOS 7 simulator
     with Xcode 5 DP-2 every time.
+  * [OSX] Fixed where it does not generate 64bit type into brigesupport in
+    3rd-party library on MacOSX platform.
   * Fixed a bug where it would cause `not precompiled' error when it call the
     method which has the BOOL type argument.
   * Added the block to setup controller in spec.
diff --git a/build.sh b/build.sh
old mode 100644
new mode 100755
index e049fc22..0ccebdcd
--- a/build.sh
+++ b/build.sh
@@ -1,2 +1,2 @@
 rake
-SDK_BETA=1 PLATFORMS_DIR=/Applications/Xcode5-DP2.app/Contents/Developer/Platforms rake
+SDK_BETA=1 PLATFORMS_DIR=/Applications/Xcode5-DP3.app/Contents/Developer/Platforms rake
diff --git a/lib/motion/project/builder.rb b/lib/motion/project/builder.rb
index c6949f5e..46a67c74 100644
--- a/lib/motion/project/builder.rb
+++ b/lib/motion/project/builder.rb
@@ -75,7 +75,7 @@ module Motion; module Project;
           bs_file = File.join(Builder.common_build_dir, File.expand_path(path) + '.bridgesupport')
           if !File.exist?(bs_file) or File.mtime(path) > File.mtime(bs_file)
             FileUtils.mkdir_p(File.dirname(bs_file))
-            config.gen_bridge_metadata(headers, bs_file, '', [])
+            config.gen_bridge_metadata(platform, headers, bs_file, '', [])
           end
           bs_files << bs_file
         end
diff --git a/lib/motion/project/vendor.rb b/lib/motion/project/vendor.rb
index 8547b15e..166e5873 100644
--- a/lib/motion/project/vendor.rb
+++ b/lib/motion/project/vendor.rb
@@ -121,7 +121,7 @@ EOS
           if !File.exist?(bs_file) or headers.any? { |h| File.mtime(h) > File.mtime(bs_file) }
             bs_cflags = (opts.delete(:bridgesupport_cflags) or '')
             bs_exceptions = (opts.delete(:bridgesupport_exceptions) or [])
-            @config.gen_bridge_metadata(headers, bs_file, bs_cflags, bs_exceptions)
+            @config.gen_bridge_metadata(platform, headers, bs_file, bs_cflags, bs_exceptions)
           end
           bs_files << bs_file
         end
@@ -197,7 +197,7 @@ EOS
           if !File.exist?(bs_file) or headers.any? { |x| File.mtime(x) > File.mtime(bs_file) }
             bs_cflags = (opts.delete(:bridgesupport_cflags) or '')
             bs_exceptions = (opts.delete(:bridgesupport_exceptions) or [])
-            @config.gen_bridge_metadata(headers, bs_file, bs_cflags, bs_exceptions)
+            @config.gen_bridge_metadata(platform, headers, bs_file, bs_cflags, bs_exceptions)
           end
         end
 
diff --git a/lib/motion/project/xcode_config.rb b/lib/motion/project/xcode_config.rb
index 9d5a8f5d..a009f077 100644
--- a/lib/motion/project/xcode_config.rb
+++ b/lib/motion/project/xcode_config.rb
@@ -292,13 +292,20 @@ EOS
       end 
     end
 
-    def gen_bridge_metadata(headers, bs_file, c_flags, exceptions=[])
+    def gen_bridge_metadata(platform, headers, bs_file, c_flags, exceptions=[])
       sdk_path = self.sdk(local_platform)
       includes = headers.map { |header| "-I'#{File.dirname(header)}'" }.uniq
       exceptions = exceptions.map { |x| "\"#{x}\"" }.join(' ')
       a = sdk_version.scan(/(\d+)\.(\d+)/)[0]
       sdk_version_headers = ((a[0].to_i * 10000) + (a[1].to_i * 100)).to_s
-      extra_flags = OSX_VERSION >= 10.7 ? '--no-64-bit' : ''
+      extra_flags = begin
+        case platform
+        when "MacOSX"
+          '--64-bit'
+        else
+          OSX_VERSION >= 10.7 ? '--no-64-bit' : ''
+        end
+      end
       sh "RUBYOPT='' /usr/bin/gen_bridge_metadata --format complete #{extra_flags} --cflags \" #{c_flags} -isysroot #{sdk_path} -miphoneos-version-min=#{sdk_version} -D__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__=#{sdk_version_headers} -I. #{includes.join(' ')}\" #{headers.map { |x| "\"#{x}\"" }.join(' ')} -o \"#{bs_file}\" #{ "-e #{exceptions}" if exceptions.length != 0}"
     end