diff --git a/overpy/__init__.py b/overpy/__init__.py
index 5427353..1d23cf6 100644
--- a/overpy/__init__.py
+++ b/overpy/__init__.py
@@ -469,6 +469,7 @@ def __init__(self, attributes=None, result=None, tags=None):
 
         self._result = result
         self.attributes = attributes
+        self.id = None
         self.tags = tags