diff --git a/src/datasets/packaged_modules/imagefolder/imagefolder.py b/src/datasets/packaged_modules/imagefolder/imagefolder.py
index f9a1a88b85c..6a16c760c01 100644
--- a/src/datasets/packaged_modules/imagefolder/imagefolder.py
+++ b/src/datasets/packaged_modules/imagefolder/imagefolder.py
@@ -57,8 +57,8 @@ class ImageFolder(folder_based_builder.FolderBasedBuilder):
     ".gbr",
     ".gif",
     ".grib",
-    ".h5",
-    ".hdf",
+    # ".h5",   # may contain zero or several images
+    # ".hdf",  # may contain zero or several images
     ".png",
     ".apng",
     ".jp2",