diff --git a/skimage/data/setup.py b/skimage/data/setup.py
index 528e9c284ce..ba0e155559c 100644
--- a/skimage/data/setup.py
+++ b/skimage/data/setup.py
@@ -11,7 +11,11 @@ def configuration(parent_package='', top_path=None):
     # further notice.
     # Testing data and additional datasets should only
     # be made available via pooch
-    config.add_data_files(*legacy_datasets)
+    # Nix patch: add ALL images to facilitate testing of a fully-built package
+    from pathlib import Path
+    config.add_data_files(
+        *(path.name for path in Path(__file__).parent.glob("*") if path.suffix != ".py")
+    )
     # It seems hard to create a consistent hash for README.txt since
     # the line endings keep getting converted
     config.add_data_files('README.txt')