diff --git a/build-system/babel-config/pre-closure-config.js b/build-system/babel-config/pre-closure-config.js
index 1303cb8d052e..cfbe6e58f473 100644
--- a/build-system/babel-config/pre-closure-config.js
+++ b/build-system/babel-config/pre-closure-config.js
@@ -39,6 +39,7 @@ function getPreClosureConfig() {
   ];
   const replacePlugin = getReplacePlugin();
   const preClosurePlugins = [
+    'optimize-objstr',
     argv.coverage ? 'babel-plugin-istanbul' : null,
     './build-system/babel-plugins/babel-plugin-transform-fix-leading-comments',
     './build-system/babel-plugins/babel-plugin-transform-promise-resolve',
diff --git a/package-lock.json b/package-lock.json
index 3c584e031b67..2a72762b2c85 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7028,6 +7028,12 @@
       "integrity": "sha512-aXZiaqWDNUbyNNNpWs/8NyST+oU7QTpK7J9zFEFSA0eOmtUNMU3fczlTTTlnCxHmq/jYNFEmkkSG3DDBtW3Y4Q==",
       "dev": true
     },
+    "babel-plugin-optimize-objstr": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-optimize-objstr/-/babel-plugin-optimize-objstr-1.0.0.tgz",
+      "integrity": "sha512-0AMyPrN4s6Nh3PhNIo5C/xqOGacJJQkLzZbfgAZ05nSvp/WJYr+UWgRsNOdAmFtlJArBqEoLAtD0w97nJtA3+w==",
+      "dev": true
+    },
     "babel-preset-current-node-syntax": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/babel-preset-current-node-syntax/-/babel-preset-current-node-syntax-1.0.1.tgz",
diff --git a/package.json b/package.json
index e225a3200311..bd517d427eba 100644
--- a/package.json
+++ b/package.json
@@ -64,6 +64,7 @@
     "ava": "3.15.0",
     "babel-plugin-istanbul": "6.0.0",
     "babel-plugin-minify-replace": "0.5.0",
+    "babel-plugin-optimize-objstr": "1.0.0",
     "babelify": "10.0.0",
     "baconipsum": "0.1.2",
     "base62": "2.0.1",