fix: redefinition (#1052)

open-telemetry · Nov 4, 2021 · 14ec785 · 14ec785
1 parent 8e8c50a
commit 14ec785
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/api/include/opentelemetry/trace/propagation/http_trace_context.h b/api/include/opentelemetry/trace/propagation/http_trace_context.h
@@ -1,6 +1,8 @@
 // Copyright The OpenTelemetry Authors
 // SPDX-License-Identifier: Apache-2.0
 
+#pragma once
+
 #include <array>
 #include "detail/hex.h"
 #include "detail/string.h"