diff --git a/docs/source/en/perplexity.md b/docs/source/en/perplexity.md
index ac7ef8504..525f0d567 100644
--- a/docs/source/en/perplexity.md
+++ b/docs/source/en/perplexity.md
@@ -73,8 +73,9 @@ Let's demonstrate this process with GPT-2.
 
 ```python
 from transformers import GPT2LMHeadModel, GPT2TokenizerFast
+from accelerate.test_utils.testing import get_backend
 
-device = "cuda"
+device, _, _ = get_backend() # automatically detects the underlying device type (CUDA, CPU, XPU, MPS, etc.)
 model_id = "openai-community/gpt2-large"
 model = GPT2LMHeadModel.from_pretrained(model_id).to(device)
 tokenizer = GPT2TokenizerFast.from_pretrained(model_id)