diff --git a/reqtools/sessions.py b/reqtools/sessions.py
index d78521b..5203b55 100644
--- a/reqtools/sessions.py
+++ b/reqtools/sessions.py
@@ -18,8 +18,7 @@ def __init__(self, base_url: str, *, prefix: str = None, request_timeout: int =
 
         self._base_url = base_url
         self._prefix = prefix
-        if request_timeout:
-            self._request_timeout = request_timeout
+        self._request_timeout = request_timeout
 
     def __repr__(self):
         return f'{self.__class__.__name__}({self.url})'