diff --git a/benchmark/hicache/bench_long_context.py b/benchmark/hicache/bench_long_context.py
index eed0ae5dc..a3656cef9 100644
--- a/benchmark/hicache/bench_long_context.py
+++ b/benchmark/hicache/bench_long_context.py
@@ -65,6 +65,7 @@ class ContextWorkloadGenerator(WorkloadGenerator):
 
         self.max_parallel = args.max_parallel
         self.logfile = args.log_file
+        self.enable_round_barrier = False
 
     def response_handler(self):
         while True: