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-rw-r--r--src/core/lib/debug/trace.cc2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/core/lib/debug/trace.cc b/src/core/lib/debug/trace.cc
index 52cfbe52ea..8fb6393a36 100644
--- a/src/core/lib/debug/trace.cc
+++ b/src/core/lib/debug/trace.cc
@@ -29,6 +29,8 @@ int grpc_tracer_set_enabled(const char *name, int enabled);
namespace grpc_core {
+TraceFlag* TraceFlag::root_tracer_ = nullptr;
+
TraceFlag::TraceFlag(bool default_enabled, const char *name)
: next_tracer_(root_tracer_), name_(name), value_(default_enabled) {
root_tracer_ = this;