diff --git a/oslo_versionedobjects/fields.py b/oslo_versionedobjects/fields.py
index 86a5a33dff6a06a8cc03ba6490c76d0ebef8b5af..03973bc0c9538812eafa3d7a23d8692743938e8d 100644
--- a/oslo_versionedobjects/fields.py
+++ b/oslo_versionedobjects/fields.py
@@ -349,7 +349,7 @@ class UUID(StringPattern):
         with warnings.catch_warnings():
             warnings.simplefilter("once")
             try:
-                uuid.UUID(u"%s" % value)
+                uuid.UUID("%s" % value)
             except Exception:
                 # This is to ensure no breaking behaviour for current
                 # users
@@ -364,7 +364,7 @@ class UUID(StringPattern):
                               repr(value).encode('utf8'),
                               FutureWarning)
 
-            return u"%s" % value
+            return "%s" % value
 
 
 class MACAddress(StringPattern):