[Bugfix] Fix weight naming in Qwen3.5 (#34313)

Signed-off-by: Roger Wang <hey@rogerw.io>

[Bugfix] Fix weight naming in Qwen3.5 (#34313)
Signed-off-by: Roger Wang <hey@rogerw.io>
0b20469c · Roger Wang · GitHub · d7982daf · 0b20469c
Unverified Commit 0b20469c authored Feb 10, 2026 by Roger Wang Committed by GitHub Feb 10, 2026
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vllm/model_executor/models/qwen3_5.py vllm/model_executor/models/qwen3_5.py +1 -1

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--- a/vllm/model_executor/models/qwen3_5.py
+++ b/vllm/model_executor/models/qwen3_5.py
@@ -206,7 +206,7 @@ class Qwen3_5GatedDeltaNet(Qwen3NextGatedDeltaNet):
            output_size=self.num_v_heads,
            bias=False,
            quant_config=quant_config,
-            prefix=f"{prefix}.in_proj_ba",
+            prefix=f"{prefix}.in_proj_b",
        )
        self.in_proj_a = ColumnParallelLinear(
            input_size=self.hidden_size,