diff --git a/mesh_tensorflow/ops.py b/mesh_tensorflow/ops.py
index <HASH>..<HASH> 100644
--- a/mesh_tensorflow/ops.py
+++ b/mesh_tensorflow/ops.py
@@ -439,7 +439,7 @@ class Graph(object):
     return name
 
   def rewrite_stack_variables(self,
-                              max_combined_variable_size=2 ** 33,
+                              max_combined_variable_size=2 ** 30,
                               max_combined_slice_size=2 ** 27,
                               mesh_to_impl=None):
     """Rewrite the current graph to combine variables.
revert a previous change in the maximum size of stacked variables.

PiperOrigin-RevId: <I>