Update build files.
diff --git a/grpc.gemspec b/grpc.gemspec
index 6b8beba..8bb9c1c 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -300,6 +300,7 @@
   s.files += %w( src/core/ext/client_config/client_channel_factory.h )
   s.files += %w( src/core/ext/client_config/client_config.h )
   s.files += %w( src/core/ext/client_config/connector.h )
+  s.files += %w( src/core/ext/client_config/http_connect_handshaker.h )
   s.files += %w( src/core/ext/client_config/initial_connect_string.h )
   s.files += %w( src/core/ext/client_config/lb_policy.h )
   s.files += %w( src/core/ext/client_config/lb_policy_factory.h )
@@ -476,6 +477,7 @@
   s.files += %w( src/core/ext/client_config/client_config_plugin.c )
   s.files += %w( src/core/ext/client_config/connector.c )
   s.files += %w( src/core/ext/client_config/default_initial_connect_string.c )
+  s.files += %w( src/core/ext/client_config/http_connect_handshaker.c )
   s.files += %w( src/core/ext/client_config/initial_connect_string.c )
   s.files += %w( src/core/ext/client_config/lb_policy.c )
   s.files += %w( src/core/ext/client_config/lb_policy_factory.c )