diff --git a/coffee/__init__.py b/coffee/__init__.py
index 1face273..f6a42734 100644
--- a/coffee/__init__.py
+++ b/coffee/__init__.py
@@ -41,7 +41,7 @@
 from coffee.system import set_architecture, set_compiler, set_isa
 
 
-__all__ = ['options', 'initialized', 'O0', 'O1', 'O2', 'O3']
+__all__ = ['options', 'initialized', 'O0', 'O1', 'O2', 'O3', 'Ov']
 
 
 class Options(dict):
@@ -174,6 +174,7 @@ def set_opt_level(optlevel):
 O1 = OptimizationLevel('O1', rewrite=1)
 O2 = OptimizationLevel('O2', rewrite=2, dead_ops_elimination=True)
 O3 = OptimizationLevel('O3', align_pad=True, **O2)
+Ov = OptimizationLevel('Ov', align_pad=True)
 
 initialized = False