diff --git a/vllm/model_executor/models/gpt_oss.py b/vllm/model_executor/models/gpt_oss.py
index 9de3e261941b..cff16b7a7a8c 100644
--- a/vllm/model_executor/models/gpt_oss.py
+++ b/vllm/model_executor/models/gpt_oss.py
@@ -647,8 +647,8 @@ class GptOssModel(nn.Module):
             )
         else:
             return self._load_weights_other(
-                ep_rank_start,
                 ep_rank_end,
+                ep_rank_start,
                 heads_per_rank,
                 head_start,
                 weights,