diff --git a/src/js/tabs/exchange.js b/src/js/tabs/exchange.js
index 84cd87e1b..bce8ed719 100644
--- a/src/js/tabs/exchange.js
+++ b/src/js/tabs/exchange.js
@@ -155,7 +155,7 @@ ExchangeTab.prototype.angular = function (module)
                   var alt = {};
                   alt.amount   = Amount.from_json(raw.source_amount);
                   alt.rate     = alt.amount.ratio_human(amount);
-                  alt.send_max = alt.amount.product_human(Amount.from_json('1.01'));
+                  alt.send_max = alt.amount.scale(1.01);
                   alt.paths    = raw.paths_computed
                       ? raw.paths_computed
                       : raw.paths_canonical;
diff --git a/src/js/tabs/send.js b/src/js/tabs/send.js
index a2a2196f1..6c94b7feb 100644
--- a/src/js/tabs/send.js
+++ b/src/js/tabs/send.js
@@ -508,7 +508,7 @@ SendTab.prototype.angular = function (module)
               var slightlyInFuture = new Date(+new Date() + 5 * 60000);
 
               alt.rate     = alt.amount.ratio_human(amount, {reference_date: slightlyInFuture});
-              alt.send_max = alt.amount.product_human(Amount.from_json('1.01'));
+              alt.send_max = alt.amount.scale(1.01);
               alt.paths    = raw.paths_computed
                 ? raw.paths_computed
                 : raw.paths_canonical;