diff --git a/python/sglang/srt/model_executor/model_runner_kv_cache_mixin.py b/python/sglang/srt/model_executor/model_runner_kv_cache_mixin.py
index 74ce00c19..58658b12c 100644
--- a/python/sglang/srt/model_executor/model_runner_kv_cache_mixin.py
+++ b/python/sglang/srt/model_executor/model_runner_kv_cache_mixin.py
@@ -536,6 +536,7 @@ class ModelRunnerKVCacheMixin:
                             get_attention_tp_size()
                         ),
                         head_dim=self.model_config.head_dim,
+                        v_head_dim=self.model_config.v_head_dim,
                         layer_num=self.num_effective_layers,
                         device=self.device,
                         enable_memory_saver=self.server_args.enable_memory_saver,
@@ -555,6 +556,7 @@ class ModelRunnerKVCacheMixin:
                             get_attention_tp_size()
                         ),
                         head_dim=self.model_config.head_dim,
+                        v_head_dim=self.model_config.v_head_dim,
                         layer_num=self.num_effective_layers,
                         device=self.device,
                         enable_memory_saver=self.server_args.enable_memory_saver,