diff --git a/app.py b/app.py
index ea1c468..ca5f63b 100644
--- a/app.py
+++ b/app.py
@@ -206,9 +206,11 @@ def tts(
             (tgt_sr, audio_opt),
         )
     except EOFError:
-        info = """
-It seems that edge-tts output is empty. This may occur when the input text and the speaker do not match.
-For example, maybe you entered Japanese (without alphabets) text but chose non-Japanese speaker?"""
+        info =(
+            "It seems that the edge-tts output is not valid. "
+            "This may occur when the input text and the speaker do not match. "
+            "For example, maybe you entered Japanese (without alphabets) text but chose non-Japanese speaker?"
+            )
         print(info)
         return info, None, None
     except: