diff --git a/exporters/otlp/test/otlp_grpc_exporter_test.cc b/exporters/otlp/test/otlp_grpc_exporter_test.cc
index 6652f0fb9b..fc4715fc0d 100644
--- a/exporters/otlp/test/otlp_grpc_exporter_test.cc
+++ b/exporters/otlp/test/otlp_grpc_exporter_test.cc
@@ -68,7 +68,7 @@ class OtlpMockTraceServiceStub : public proto::collector::trace::v1::MockTraceSe
   public:
     async_interface(OtlpMockTraceServiceStub *owner) : stub_(owner) {}
 
-    virtual ~async_interface() {}
+    virtual ~async_interface() override = default;
 
     void Export(
         ::grpc::ClientContext *context,
diff --git a/exporters/otlp/test/otlp_grpc_log_record_exporter_test.cc b/exporters/otlp/test/otlp_grpc_log_record_exporter_test.cc
index 22e7e16b31..55dad11512 100644
--- a/exporters/otlp/test/otlp_grpc_log_record_exporter_test.cc
+++ b/exporters/otlp/test/otlp_grpc_log_record_exporter_test.cc
@@ -69,7 +69,7 @@ class OtlpMockTraceServiceStub : public proto::collector::trace::v1::MockTraceSe
   public:
     async_interface(OtlpMockTraceServiceStub *owner) : stub_(owner) {}
 
-    virtual ~async_interface() {}
+    virtual ~async_interface() override = default;
 
     void Export(
         ::grpc::ClientContext *context,
@@ -132,7 +132,7 @@ class OtlpMockLogsServiceStub : public proto::collector::logs::v1::MockLogsServi
   public:
     async_interface(OtlpMockLogsServiceStub *owner) : stub_(owner) {}
 
-    virtual ~async_interface() {}
+    virtual ~async_interface() override = default;
 
     void Export(
         ::grpc::ClientContext *context,