diff --git a/s3tests/functional/test_s3.py b/s3tests/functional/test_s3.py
index 6a75aa5..36d8bcc 100644
--- a/s3tests/functional/test_s3.py
+++ b/s3tests/functional/test_s3.py
@@ -2584,7 +2584,7 @@ def test_bucket_create_naming_good_contains_hyphen():
 @attr(operation='create and list objects with special names')
 @attr(assertion='special names work')
 def test_bucket_create_special_key_names():
-    key_names = [' ', '_', '_ ', '_ _', '__']
+    key_names = [' ', '%', '_', '_ ', '_ _', '__']
     bucket = _create_keys(keys=key_names)
 
     li = bucket.list()