diff --git a/src/libutil/logging.cc b/src/libutil/logging.cc
index 011155871..6924e0080 100644
--- a/src/libutil/logging.cc
+++ b/src/libutil/logging.cc
@@ -49,6 +49,7 @@ public:
 
     void startActivity(ActivityId act, Verbosity lvl, ActivityType type,
         const std::string & s, const Fields & fields, ActivityId parent)
+        override
     {
         if (lvl <= verbosity && !s.empty())
             log(lvl, s + "...");