diff --git a/polyply/__init__.py b/polyply/__init__.py
index faa563db..6615e635 100644
--- a/polyply/__init__.py
+++ b/polyply/__init__.py
@@ -29,7 +29,7 @@
     del Path
 else:
     ref_data = files('polyply') / 'data'
-    ref_test = files('polyply') / 'test'
+    ref_test = files('polyply') / 'test/test_data'
     file_manager = ExitStack()
     atexit.register(file_manager.close)
     DATA_PATH = file_manager.enter_context(as_file(ref_data))