diff --git a/tests/__init__.py b/tests/__init__.py
index 45c297f..0a9bee8 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -73,7 +73,7 @@ class ArchiveTest (unittest.TestCase):
         if singlefile:
             topack = os.path.join(datadir, 'foo .txt')
         else:
-            topack = os.path.join(datadir, 'foo ')
+            topack = os.path.join(datadir, 'foo dir')
         # The format and encoding arguments are needed for creating
         # archives with unusual file extensions.
         kwargs = dict(
diff --git a/tests/data/foo /bar/t.txt b/tests/data/foo dir/bar/t.txt
similarity index 100%
rename from tests/data/foo /bar/t.txt
rename to tests/data/foo dir/bar/t.txt
diff --git a/tests/data/foo /t.txt b/tests/data/foo dir/t.txt
similarity index 100%
rename from tests/data/foo /t.txt
rename to tests/data/foo dir/t.txt