diff --git a/lib/constructs/interface.js b/lib/constructs/interface.js
index 9885dd8b..ee592827 100644
--- a/lib/constructs/interface.js
+++ b/lib/constructs/interface.js
@@ -1204,7 +1204,7 @@ class Interface {
       };
 
       exports.new = globalObject => {
-        const wrapper = makeWrapper(globalObject);
+        ${this.isLegacyPlatformObj ? "let" : "const"} wrapper = makeWrapper(globalObject);
 
         exports._internalSetup(wrapper, globalObject);
         Object.defineProperty(wrapper, implSymbol, {
diff --git a/test/__snapshots__/test.js.snap b/test/__snapshots__/test.js.snap
index 46cbd7b4..767c1800 100644
--- a/test/__snapshots__/test.js.snap
+++ b/test/__snapshots__/test.js.snap
@@ -404,7 +404,7 @@ exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {})
 };
 
 exports.new = globalObject => {
-  const wrapper = makeWrapper(globalObject);
+  let wrapper = makeWrapper(globalObject);
 
   exports._internalSetup(wrapper, globalObject);
   Object.defineProperty(wrapper, implSymbol, {
@@ -2638,7 +2638,7 @@ exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {})
 };
 
 exports.new = globalObject => {
-  const wrapper = makeWrapper(globalObject);
+  let wrapper = makeWrapper(globalObject);
 
   exports._internalSetup(wrapper, globalObject);
   Object.defineProperty(wrapper, implSymbol, {
@@ -4820,7 +4820,7 @@ exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {})
 };
 
 exports.new = globalObject => {
-  const wrapper = makeWrapper(globalObject);
+  let wrapper = makeWrapper(globalObject);
 
   exports._internalSetup(wrapper, globalObject);
   Object.defineProperty(wrapper, implSymbol, {
@@ -6685,7 +6685,7 @@ exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {})
 };
 
 exports.new = globalObject => {
-  const wrapper = makeWrapper(globalObject);
+  let wrapper = makeWrapper(globalObject);
 
   exports._internalSetup(wrapper, globalObject);
   Object.defineProperty(wrapper, implSymbol, {
@@ -7473,7 +7473,7 @@ exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {})
 };
 
 exports.new = globalObject => {
-  const wrapper = makeWrapper(globalObject);
+  let wrapper = makeWrapper(globalObject);
 
   exports._internalSetup(wrapper, globalObject);
   Object.defineProperty(wrapper, implSymbol, {
@@ -7842,7 +7842,7 @@ exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {})
 };
 
 exports.new = globalObject => {
-  const wrapper = makeWrapper(globalObject);
+  let wrapper = makeWrapper(globalObject);
 
   exports._internalSetup(wrapper, globalObject);
   Object.defineProperty(wrapper, implSymbol, {
@@ -9255,7 +9255,7 @@ exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {})
 };
 
 exports.new = globalObject => {
-  const wrapper = makeWrapper(globalObject);
+  let wrapper = makeWrapper(globalObject);
 
   exports._internalSetup(wrapper, globalObject);
   Object.defineProperty(wrapper, implSymbol, {
@@ -11448,7 +11448,7 @@ exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {})
 };
 
 exports.new = globalObject => {
-  const wrapper = makeWrapper(globalObject);
+  let wrapper = makeWrapper(globalObject);
 
   exports._internalSetup(wrapper, globalObject);
   Object.defineProperty(wrapper, implSymbol, {
@@ -13615,7 +13615,7 @@ exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {})
 };
 
 exports.new = globalObject => {
-  const wrapper = makeWrapper(globalObject);
+  let wrapper = makeWrapper(globalObject);
 
   exports._internalSetup(wrapper, globalObject);
   Object.defineProperty(wrapper, implSymbol, {
@@ -15480,7 +15480,7 @@ exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {})
 };
 
 exports.new = globalObject => {
-  const wrapper = makeWrapper(globalObject);
+  let wrapper = makeWrapper(globalObject);
 
   exports._internalSetup(wrapper, globalObject);
   Object.defineProperty(wrapper, implSymbol, {
@@ -16268,7 +16268,7 @@ exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {})
 };
 
 exports.new = globalObject => {
-  const wrapper = makeWrapper(globalObject);
+  let wrapper = makeWrapper(globalObject);
 
   exports._internalSetup(wrapper, globalObject);
   Object.defineProperty(wrapper, implSymbol, {
@@ -16637,7 +16637,7 @@ exports.setup = (wrapper, globalObject, constructorArgs = [], privateData = {})
 };
 
 exports.new = globalObject => {
-  const wrapper = makeWrapper(globalObject);
+  let wrapper = makeWrapper(globalObject);
 
   exports._internalSetup(wrapper, globalObject);
   Object.defineProperty(wrapper, implSymbol, {