diff --git a/tests/testdata/unicode.dist/setup.py b/tests/testdata/unicode.dist/setup.py
index 89c4be12..ec66d1e6 100644
--- a/tests/testdata/unicode.dist/setup.py
+++ b/tests/testdata/unicode.dist/setup.py
@@ -7,4 +7,5 @@
     version="0.1",
     description="A testing distribution \N{SNOWMAN}",
     packages=["unicodedist"],
+    zip_safe=True,
 )