diff --git a/binding.gyp b/binding.gyp
index 760bb24..d2b63e3 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -723,6 +723,7 @@
         'src/core/ext/resolver/dns/native/dns_resolver.c',
         'src/core/ext/resolver/sockaddr/sockaddr_resolver.c',
         'src/core/ext/census/context.c',
+        'src/core/ext/census/gen/census.pb.c',
         'src/core/ext/census/grpc_context.c',
         'src/core/ext/census/grpc_filter.c',
         'src/core/ext/census/grpc_plugin.c',