diff --git a/clang-tools-extra/clangd/index/remote/monitor/Monitor.cpp b/clang-tools-extra/clangd/index/remote/monitor/Monitor.cpp
--- a/clang-tools-extra/clangd/index/remote/monitor/Monitor.cpp
+++ b/clang-tools-extra/clangd/index/remote/monitor/Monitor.cpp
@@ -67,8 +67,9 @@
       google::protobuf::util::MessageToJsonString(Response, &Output, Options);
   if (!JsonStatus.ok()) {
     clang::clangd::elog("Can not convert response ({0}) to JSON ({1}): {2}\n",
-                        Response.DebugString(), JsonStatus.error_code(),
-                        JsonStatus.error_message().as_string());
+                        Response.DebugString(),
+                        static_cast<int>(JsonStatus.code()),
+                        JsonStatus.message().as_string());
     return -1;
   }
   llvm::outs() << Output;