diff --git a/zunclient/common/base.py b/zunclient/common/base.py
index c62060c2..368559d9 100644
--- a/zunclient/common/base.py
+++ b/zunclient/common/base.py
@@ -31,10 +31,7 @@ def getid(obj):
     Abstracts the common pattern of allowing both an object or an
     object's ID (UUID) as a parameter when dealing with relationships.
     """
-    try:
-        return obj.id
-    except AttributeError:
-        return obj
+    return getattr(obj, 'id', obj)
 
 
 class Manager(object):