diff --git a/CHANGES.rst b/CHANGES.rst
index 670fae10e18..9830ee16b47 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -283,7 +283,7 @@ Other Changes and Additions
 
 - ``astropy.table``
 
-  - Sped up setting of ``Column`` slices by an order of magnitude. [#2994]
+  - Sped up setting of ``Column`` slices by an order of magnitude. [#2994, #3020]
 
 - Updated the bundled ``six`` module to version 1.7.3 and made 1.7.3 the
   minimum acceptable version of ``six``. [#2814]
diff --git a/astropy/table/column.py b/astropy/table/column.py
index e82319c8438..ae58c3b637b 100644
--- a/astropy/table/column.py
+++ b/astropy/table/column.py
@@ -210,6 +210,11 @@ def __ne__(self, other):
     def __setitem__(self, index, value):
         self.data[index] = value
 
+    # Set slices using a view of the underlying data, as it gives an
+    # order-of-magnitude speed-up.  Only gets called in Python 2.  [#3020]
+    def __setslice__(self, start, stop, value):
+        self.data.__setslice__(start, stop, value)
+
     def __array_finalize__(self, obj):
         # Obj will be none for direct call to Column() creator
         if obj is None: