diff --git a/Whatsapp_Chat_Exporter/utility.py b/Whatsapp_Chat_Exporter/utility.py
index 9eda832..afcebd9 100644
--- a/Whatsapp_Chat_Exporter/utility.py
+++ b/Whatsapp_Chat_Exporter/utility.py
@@ -601,7 +601,7 @@ def setup_template(template: Optional[str], no_avatar: bool, experimental: bool
 APPLE_TIME = 978307200
 
 
-def safe_name(text: Union[str|bytes]) -> str:
+def safe_name(text: Union[str, bytes]) -> str:
     """
     Sanitize the input text and generates a safe file name.
     This function serves a similar purpose to slugify() from