diff --git a/packages/zoe/src/contractSupport/ratio.js b/packages/zoe/src/contractSupport/ratio.js
index d3c3ce6fc3f..42bb4db5c6e 100644
--- a/packages/zoe/src/contractSupport/ratio.js
+++ b/packages/zoe/src/contractSupport/ratio.js
@@ -4,8 +4,8 @@ import './types.js';
 import { assert, details as X, q } from '@agoric/assert';
 import { Nat } from '@agoric/nat';
 import { AmountMath } from '@agoric/ertp';
-import { natSafeMath } from './safeMath.js';
 import { passStyleOf } from '@agoric/marshal';
+import { natSafeMath } from './safeMath.js';
 
 const { multiply, floorDivide, ceilDivide, add, subtract } = natSafeMath;