diff --git a/include/grpcpp/server_impl.h b/include/grpcpp/server_impl.h
index 43b6558ae83..d121fc40993 100644
--- a/include/grpcpp/server_impl.h
+++ b/include/grpcpp/server_impl.h
@@ -53,7 +53,6 @@ class ExternalConnectionAcceptorImpl;
 }  // namespace grpc
 
 namespace grpc_impl {
-class HealthCheckServiceInterface;
 class ServerContext;
 class ServerInitializer;