diff --git a/python/sglang/srt/layers/rotary_embedding/rope_variant.py b/python/sglang/srt/layers/rotary_embedding/rope_variant.py
index 2fe9d5da2..7b0cb87e3 100644
--- a/python/sglang/srt/layers/rotary_embedding/rope_variant.py
+++ b/python/sglang/srt/layers/rotary_embedding/rope_variant.py
@@ -413,9 +413,10 @@ class DeepseekScalingRotaryEmbedding(RotaryEmbedding):
         cos = freqs.cos() * self.mscale
         sin = freqs.sin() * self.mscale
         cache = torch.cat((cos, sin), dim=-1)
-        emb = torch.cat((freqs, freqs), dim=-1)
-        self.cos_cached_total = torch.cos(emb) * self.mscale
-        self.sin_cached_total = torch.sin(emb) * self.mscale
+        if _is_npu:
+            emb = torch.cat((freqs, freqs), dim=-1)
+            self.cos_cached_total = torch.cos(emb) * self.mscale
+            self.sin_cached_total = torch.sin(emb) * self.mscale
         return cache
 
     def get_cos_cached_total(self):