diff --git a/tianshou/highlevel/agent.py b/tianshou/highlevel/agent.py
index dce3379..772c9d1 100644
--- a/tianshou/highlevel/agent.py
+++ b/tianshou/highlevel/agent.py
@@ -115,7 +115,10 @@ class AgentFactory(ABC, ToStringMixin):
         train_collector = Collector(policy, train_envs, buffer, exploration_noise=True)
         test_collector = Collector(policy, envs.test_envs)
         if self.sampling_config.start_timesteps > 0:
-            train_collector.collect(n_step=self.sampling_config.start_timesteps, random=True)
+            train_collector.collect(
+                n_step=self.sampling_config.start_timesteps,
+                random=self.sampling_config.start_timesteps_random,
+            )
         return train_collector, test_collector
 
     def set_policy_wrapper_factory(