diff --git a/PDE/test_UpwindFirstOrder.mo b/PDE/test_UpwindFirstOrder.mo
index 2f0e49a7662d20a6f8c3d2bd7095582257c88677..3037b0249e7afa20b5d7ae7b8b94a77db6aed2b6 100644
--- a/PDE/test_UpwindFirstOrder.mo
+++ b/PDE/test_UpwindFirstOrder.mo
@@ -24,9 +24,9 @@ initial equation
 equation
 //
   Vel = pulse.y;
-
 // Boundary conditions
   transport.u_ghost_left[:] = fill(1.0, 2);
-  transport.u_ghost_right[:] = fill(2.0, 2);  
-
+  transport.u_ghost_right[:] = fill(2.0, 2);
+  annotation(
+    experiment(StartTime = 0, StopTime = 1, Tolerance = 1e-6, Interval = 0.002));
 end test_UpwindFirstOrder;