Make plugin registries work
diff --git a/binding.gyp b/binding.gyp
index 068161b..bfae59e 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -719,6 +719,7 @@
         'src/core/lib/tsi/fake_transport_security.c',
         'src/core/lib/tsi/ssl_transport_security.c',
         'src/core/lib/tsi/transport_security.c',
+        'src/core/plugin_registry/grpc_plugin_registry.c',
         'third_party/nanopb/pb_common.c',
         'third_party/nanopb/pb_decode.c',
         'third_party/nanopb/pb_encode.c',