diff --git a/setup.py b/setup.py
index 561d8ae9..7d888797 100644
--- a/setup.py
+++ b/setup.py
@@ -68,7 +68,7 @@ def read(fname):
 
     packages=find_packages(),
     package_data={
-        "smart_open.tests": ["test_data/*gz"],
+        "smart_open.tests": ["test_data/*"],
     },
 
     author='Radim Rehurek',