diff --git a/aider/voice.py b/aider/voice.py
index 69fe109af..aca5995ae 100644
--- a/aider/voice.py
+++ b/aider/voice.py
@@ -7,7 +7,9 @@ import warnings
 
 from aider.llm import litellm
 
-warnings.filterwarnings("ignore", message="Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work")
+warnings.filterwarnings(
+    "ignore", message="Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work"
+)
 
 try:
     import soundfile as sf