diff --git a/activestorage/active.py b/activestorage/active.py
index dfab6f81..438c52c0 100644
--- a/activestorage/active.py
+++ b/activestorage/active.py
@@ -250,7 +250,7 @@ def __init__(self,
         elif input_variable and self.interface_type == "s3":
             self.filename = self.ds.id._filename
         elif input_variable and self.interface_type == "https":
-            self.filename = self.ds
+            self.filename = self.ds.id._filename
 
         # get storage_options
         self.storage_options = storage_options
@@ -726,7 +726,7 @@ def _process_chunk(self,
         elif self.interface_type == "https" and self._version == 2:
             tmp, count = reductionist.reduce_chunk(session,
                                                    self.active_storage_url,
-                                                   f"{self.uri}",
+                                                   self.filename,
                                                    offset,
                                                    size,
                                                    compressor,
diff --git a/tests/test_real_https.py b/tests/test_real_https.py
index b8baa814..e3cef862 100644
--- a/tests/test_real_https.py
+++ b/tests/test_real_https.py
@@ -92,6 +92,20 @@ def test_https():
     assert result.shape == (1, 1, 144, 192)
     assert result[0, 0, 0, 0] == f_1
     assert result[0, 0, 143, 191] == f_2
+
+    # run with pyfive.Dataset instead of File
+    dataset = load_from_https(test_file_uri)
+    av = dataset['ta']
+    active = Active(av,
+                    active_storage_url=active_storage_url)
+    active._version = 2
+    print("Interface type", active.interface_type)
+    result = active.min(axis=(0, 1))[:]
+    print("Result is", result)
+    print("Result shape is", result.shape)
+    assert result.shape == (1, 1, 144, 192)
+    assert result[0, 0, 0, 0] == f_1
+    assert result[0, 0, 143, 191] == f_2
     
 
 @pytest.mark.skip(
diff --git a/tests/test_real_s3.py b/tests/test_real_s3.py
index decc2ffd..1af391d9 100644
--- a/tests/test_real_s3.py
+++ b/tests/test_real_s3.py
@@ -61,7 +61,6 @@ def test_s3_small_file():
     assert result == 222.09129333496094
 
 
-@pytest.mark.xfail(reason="Pyfive needs PR #197")
 def test_s3_small_dataset():
     """Run an S3 test on a small file."""
     storage_options = {