diff --git a/packages/react-devtools-core/webpack.backend.js b/packages/react-devtools-core/webpack.backend.js
index 336ae310affde..b0809234ff23d 100644
--- a/packages/react-devtools-core/webpack.backend.js
+++ b/packages/react-devtools-core/webpack.backend.js
@@ -17,6 +17,11 @@ const __DEV__ = NODE_ENV === 'development';
 
 const DEVTOOLS_VERSION = getVersionString();
 
+// This targets RN/Hermes.
+process.env.BABEL_CONFIG_ADDITIONAL_TARGETS = JSON.stringify({
+  ie: '11',
+});
+
 module.exports = {
   mode: __DEV__ ? 'development' : 'production',
   devtool: __DEV__ ? 'cheap-module-eval-source-map' : 'source-map',
diff --git a/packages/react-devtools-shared/babel.config.js b/packages/react-devtools-shared/babel.config.js
index 2d77461af8941..ca877aa683afd 100644
--- a/packages/react-devtools-shared/babel.config.js
+++ b/packages/react-devtools-shared/babel.config.js
@@ -25,8 +25,13 @@ module.exports = api => {
     targets.chrome = minChromeVersion.toString();
     targets.firefox = minFirefoxVersion.toString();
 
-    // This targets RN/Hermes.
-    targets.ie = '11';
+    let additionalTargets = process.env.BABEL_CONFIG_ADDITIONAL_TARGETS;
+    if (additionalTargets) {
+      additionalTargets = JSON.parse(additionalTargets);
+      for (const target in additionalTargets) {
+        targets[target] = additionalTargets[target];
+      }
+    }
   }
   const plugins = [
     ['@babel/plugin-transform-flow-strip-types'],