diff --git a/vllm/model_executor/models/qwen3_vl.py b/vllm/model_executor/models/qwen3_vl.py
index 76a7cc3210c62..12cb979f0900f 100644
--- a/vllm/model_executor/models/qwen3_vl.py
+++ b/vllm/model_executor/models/qwen3_vl.py
@@ -1304,7 +1304,7 @@ class Qwen3VLForConditionalGeneration(
                     f"Got ndim: {mm_input.ndim} "
                     f"(shape={mm_input.shape})"
                 )
-            return torch.concat(list(mm_input))
+            return mm_input.reshape(-1, mm_input.shape[-1])
         else:
             return torch.concat(mm_input)