diff --git a/exporters/otlp/src/otlp_grpc_client.cc b/exporters/otlp/src/otlp_grpc_client.cc
index 941ce86dae..f36a5e3b8f 100644
--- a/exporters/otlp/src/otlp_grpc_client.cc
+++ b/exporters/otlp/src/otlp_grpc_client.cc
@@ -235,7 +235,10 @@ static sdk::common::ExportResult InternalDelegateAsyncExport(
 
 OtlpGrpcClient::OtlpGrpcClient()
 #ifdef ENABLE_ASYNC_EXPORT
-    : is_shutdown_{false}
+    : is_shutdown_
+{
+  false
+}
 #endif
 {}