diff --git a/llama_cpp/llama.py b/llama_cpp/llama.py
index b43dfe7..0978e1e 100644
--- a/llama_cpp/llama.py
+++ b/llama_cpp/llama.py
@@ -696,9 +696,7 @@ class Llama:
             llama_cpp.llama_reset_timings(self.ctx)
 
         if len(prompt_tokens) + max_tokens > self._n_ctx:
-            raise ValueError(
-                f"Requested tokens exceed context window of {self._n_ctx}"
-            )
+            raise ValueError(f"Requested tokens exceed context window of {self._n_ctx}")
 
         if stop != []:
             stop_sequences = [s.encode("utf-8") for s in stop]