diff --git a/src/backend/concrete_simulation.cc b/src/backend/concrete_simulation.cc
index 665b989..8ae3847 100644
--- a/src/backend/concrete_simulation.cc
+++ b/src/backend/concrete_simulation.cc
@@ -64,7 +64,7 @@ ConcreteSimulation::jump_to(History::position p) throw(UserInterruptException, N
     // pauses the simulation (see below)
  		break;
   case state_stopped:
-    _history.reset(true);
+    _history.step_front(0);
     break;
   default:
     break;
@@ -126,7 +126,7 @@ ConcreteSimulation::run() throw(UserInterruptException, NullPolicyException, Mal
   switch (_state)
   {
   case state_stopped:
-    _history.reset(true);
+    _history.step_front(0);
     break;
   default:
     break;