diff --git a/setup.py b/setup.py
index b6375dca..38602853 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,8 @@
     package_data={
         # Include all data files in the data directory
         "etspy": ["tests/test_data/*",
-                  "tests/test_data/DM_Series_Test",
-                  "tests/test_data/SerialEM_Multiframe_Test"],
+                  "tests/test_data/DM_Series_Test/*",
+                  "tests/test_data/SerialEM_Multiframe_Test/*"
+                  ],
     },
 )