diff --git a/tests/v1/kv_connector/unit/test_moriio_connector.py b/tests/v1/kv_connector/unit/test_moriio_connector.py
index df2e691f5bb3a..1cc6988635d8d 100644
--- a/tests/v1/kv_connector/unit/test_moriio_connector.py
+++ b/tests/v1/kv_connector/unit/test_moriio_connector.py
@@ -179,6 +179,7 @@ def create_vllm_config(
         max_num_batched_tokens=max_num_batched_tokens,
         max_model_len=max_model_len,
         enable_chunked_prefill=enable_chunked_prefill,
+        is_encoder_decoder=False,
     )
     model_config = ModelConfig(
         model=model,