Sanity fixes
diff --git a/grpc.def b/grpc.def
index af4bd16..edb17c1 100644
--- a/grpc.def
+++ b/grpc.def
@@ -67,6 +67,7 @@
     grpc_channel_check_connectivity_state
     grpc_channel_num_external_connectivity_watchers
     grpc_channel_watch_connectivity_state
+    grpc_channel_support_connectivity_watcher
     grpc_channel_create_call
     grpc_channel_ping
     grpc_channel_register_call