diff --git a/src/systemc/core/scheduler.hh b/src/systemc/core/scheduler.hh
index 273faf7d7d..742f916382 100644
--- a/src/systemc/core/scheduler.hh
+++ b/src/systemc/core/scheduler.hh
@@ -160,7 +160,7 @@ class Scheduler
         Tick targeted_when;
         Scheduler* parent_scheduler;
         ScEvents events;
-        void process();
+        void process() override;
 
       protected:
         void