diff --git a/scripts/performance/configs/qwen/qwen3_workload_base_configs.py b/scripts/performance/configs/qwen/qwen3_workload_base_configs.py
index 0cd9f66c8b..b59a100dcf 100644
--- a/scripts/performance/configs/qwen/qwen3_workload_base_configs.py
+++ b/scripts/performance/configs/qwen/qwen3_workload_base_configs.py
@@ -31,6 +31,7 @@
 
 BASE_QWEN3_235B_A22B_CONFIG = WorkloadBaseConfig(
     expert_tensor_parallel_size=1,
+    moe_flex_dispatcher_backend="deepep",
 )
 
 
@@ -38,6 +39,7 @@
     expert_model_parallel_size=8,
     expert_tensor_parallel_size=1,
     global_batch_size=512,
+    moe_flex_dispatcher_backend="deepep",
 )
 
 BASE_QWEN3_NEXT_80B_A3B_CONFIG = WorkloadBaseConfig(