diff --git a/api/include/opentelemetry/trace/trace_state.h b/api/include/opentelemetry/trace/trace_state.h
index 1a5819fe42..5375e724f5 100644
--- a/api/include/opentelemetry/trace/trace_state.h
+++ b/api/include/opentelemetry/trace/trace_state.h
@@ -110,7 +110,7 @@ class TraceState
   static constexpr int kValueMaxSize     = 256;
   static constexpr int kMaxKeyValuePairs = 32;
   // An empty TraceState.
-  TraceState() noexcept = default;
+//  TraceState() noexcept = default;
   TraceState(TraceState &&trace_state) {
     tmp_map = trace_state.tmp_map;
   }