diff --git a/storage-manager/test_data/storagemanager.cnf b/storage-manager/test_data/storagemanager.cnf
index c82b1c462..8dc742b06 100644
--- a/storage-manager/test_data/storagemanager.cnf
+++ b/storage-manager/test_data/storagemanager.cnf
@@ -36,7 +36,7 @@ max_concurrent_uploads = 20
 # 
 # -1 is a special value indicating that there is no filesystem shared
 # between SM instances.
-common_prefix_depth = 2
+common_prefix_depth = 1
 
 [S3]
 # region = some_region