diff --git a/lib/motion/project/config.rb b/lib/motion/project/config.rb
index 532b06f3..0faf2693 100644
--- a/lib/motion/project/config.rb
+++ b/lib/motion/project/config.rb
@@ -546,11 +546,11 @@ EOS
 
     def gen_bridge_metadata(headers, bs_file)
       sdk_path = self.sdk('iPhoneSimulator')
-      includes = headers.map { |header| "-I '#{File.dirname(header)}'" }.uniq
+      includes = headers.map { |header| "-I\"#{File.dirname(header)}\"" }.uniq
       a = sdk_version.scan(/(\d+)\.(\d+)/)[0]
       sdk_version_headers = ((a[0].to_i * 10000) + (a[1].to_i * 100)).to_s
 
-      line = "/usr/bin/gen_bridge_metadata --format complete --no-64-bit --cflags \"-isysroot #{sdk_path} -miphoneos-version-min=#{sdk_version} -D__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__=#{sdk_version_headers} -I. #{includes}\" #{headers.join(' ')} -o \"#{bs_file}\""
+      line = "/usr/bin/gen_bridge_metadata --format complete --no-64-bit --cflags \"-isysroot #{sdk_path} -miphoneos-version-min=#{sdk_version} -D__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__=#{sdk_version_headers} -I. #{includes.join(' ')}\" #{headers.join(' ')} -o \"#{bs_file}\""
       unless system(line)
         App.fail "Error when generating bridge metadata: #{line}"
       end