diff --git a/pybamm/solvers/casadi_solver.py b/pybamm/solvers/casadi_solver.py
index 9cd654c20a..fa0e91e537 100644
--- a/pybamm/solvers/casadi_solver.py
+++ b/pybamm/solvers/casadi_solver.py
@@ -151,8 +151,7 @@ def _integrate(self, model, t_eval, inputs=None):
                 # Non-dimensionalise provided dt_max
                 dt_max = self.dt_max / model.timescale_eval
             else:
-                # t_f is the dimensionless final time (scaled with the timescale)
-                dt_max = 0.1 * min(1, t_f)
+                dt_max = 0.01
             dt_eval_max = np.max(np.diff(t_eval)) * 1.01
             dt_max = np.max([dt_max, dt_eval_max])
             while t < t_f: