diff --git a/include/boost/python/detail/operator_id.hpp b/include/boost/python/detail/operator_id.hpp
index f2cd404e..4a2785ed 100755
--- a/include/boost/python/detail/operator_id.hpp
+++ b/include/boost/python/detail/operator_id.hpp
@@ -47,7 +47,8 @@ enum operator_id
     op_ixor,
     op_ior,
     op_complex,
-    op_nonzero
+    op_nonzero,
+    op_repr
 };
 
 }}} // namespace boost::python::detail