diff --git a/test/registered/dcp/test_qwen3p5_triton_dcp.py b/test/registered/dcp/test_qwen3p5_triton_dcp.py
index 1a0e48a57cb5..65c23c41ab73 100644
--- a/test/registered/dcp/test_qwen3p5_triton_dcp.py
+++ b/test/registered/dcp/test_qwen3p5_triton_dcp.py
@@ -47,7 +47,6 @@ def setUpClass(cls):
             "triton",
             "--context-length",
             "1048576",
-            "--disable-radix-cache",
             "--json-model-override-args",
             (
                 '{"rope_scaling":{"rope_type":"yarn","factor":4.0,'