add override in vbench module

1 files changed, 1 insertions, 1 deletions

diff --git a/vbench/src/tests/handler_thread/handler_thread_test.cpp b/vbench/src/tests/handler_thread/handler_thread_test.cpp
index 43f0c4d4a1b..a21bda82b6a 100644
--- a/vbench/src/tests/handler_thread/handler_thread_test.cpp
+++ b/vbench/src/tests/handler_thread/handler_thread_test.cpp
@@ -6,7 +6,7 @@ using namespace vbench;
 
 struct MyHandler : Handler<int> {
     std::vector<int> values;
-    virtual void handle(std::unique_ptr<int> value) {
+    virtual void handle(std::unique_ptr<int> value) override {
         values.push_back(*value);
         vespalib::Thread::sleep(10); // for improved coverage
     }