diff --git a/vllm/transformers_utils/configs/qwen3_5.py b/vllm/transformers_utils/configs/qwen3_5.py
index 9d43986a6..54d4d17dd 100644
--- a/vllm/transformers_utils/configs/qwen3_5.py
+++ b/vllm/transformers_utils/configs/qwen3_5.py
@@ -68,10 +68,10 @@ class Qwen3_5TextConfig(PretrainedConfig):
         eos_token_id=None,
         **kwargs,
     ):
-        kwargs["ignore_keys_at_rope_validation"] = [
+        kwargs["ignore_keys_at_rope_validation"] = {
             "mrope_section",
             "mrope_interleaved",
-        ]
+        }
         self.vocab_size = vocab_size
         self.max_position_embeddings = max_position_embeddings
         self.hidden_size = hidden_size
diff --git a/vllm/transformers_utils/configs/qwen3_5_moe.py b/vllm/transformers_utils/configs/qwen3_5_moe.py
index 41a1f7ed9..509b17467 100644
--- a/vllm/transformers_utils/configs/qwen3_5_moe.py
+++ b/vllm/transformers_utils/configs/qwen3_5_moe.py
@@ -75,10 +75,10 @@ class Qwen3_5MoeTextConfig(PretrainedConfig):
         eos_token_id=None,
         **kwargs,
     ):
-        kwargs["ignore_keys_at_rope_validation"] = [
+        kwargs["ignore_keys_at_rope_validation"] = {
             "mrope_section",
             "mrope_interleaved",
-        ]
+        }
         self.vocab_size = vocab_size
         self.max_position_embeddings = max_position_embeddings
         self.hidden_size = hidden_size