diff --git a/docker/swift/swift-base/build-swift-ring.py b/docker/swift/swift-base/build-swift-ring.py
index af20af7e68..7889ad4754 100644
--- a/docker/swift/swift-base/build-swift-ring.py
+++ b/docker/swift/swift-base/build-swift-ring.py
@@ -74,7 +74,7 @@ def run(args):
              args.num_replicas,
              args.min_part_hours])
 
-    for i in xrange(len(hosts)):
+    for i in range(len(hosts)):
         run_cmd(['swift-ring-builder',
                  args.ring_file,
                  'add',