diff --git a/src/biocframe/BiocFrame.py b/src/biocframe/BiocFrame.py
index ea91e65..4e8695e 100644
--- a/src/biocframe/BiocFrame.py
+++ b/src/biocframe/BiocFrame.py
@@ -347,7 +347,7 @@ def column(self, index_or_name: Union[str, int]) -> Any:
                 "`index_or_name` must be either an integer index or column name."
             )
 
-        return self[:, index_or_name]
+        return self[None, index_or_name]
 
     def row(self, index_or_name: Union[str, int]) -> dict:
         """Access a row by integer position or row name.
@@ -374,7 +374,7 @@ def row(self, index_or_name: Union[str, int]) -> dict:
                 "`index_or_name` must be either an integer index or row name."
             )
 
-        return self[index_or_name, :]
+        return self[index_or_name, None]
 
     def _slice(
         self,
diff --git a/tests/test_initialize.py b/tests/test_initialize.py
index 3c9c5d4..c4a30bc 100644
--- a/tests/test_initialize.py
+++ b/tests/test_initialize.py
@@ -109,3 +109,9 @@ def test_nested_biocFrame():
 
     bframe = BiocFrame(obj)
     assert bframe is not None
+
+    nested_col = bframe.column("nested")
+    assert nested_col is not None
+    assert isinstance(nested_col, BiocFrame)
+    assert nested_col.row_names is None
+    assert len(nested_col.column_names) == 3