diff --git a/sandpack-client/build.js b/sandpack-client/build.js
index ecd6fbfeb..8c7d2e454 100644
--- a/sandpack-client/build.js
+++ b/sandpack-client/build.js
@@ -20,6 +20,7 @@ const options = {
     ...(package.devDependencies || {}),
     ...(package.peerDependencies || {}),
   }),
+  minify: true,
 };
 
 build({
diff --git a/sandpack-react/build.js b/sandpack-react/build.js
index 068ec8039..8191dc8f8 100644
--- a/sandpack-react/build.js
+++ b/sandpack-react/build.js
@@ -16,9 +16,8 @@ const options = {
     ...(package.devDependencies || {}),
     ...(package.peerDependencies || {}),
   }),
-  define: {
-    TEST_ENV: false,
-  },
+  define: { "process.env.TEST_ENV": "false" },
+  minify: true,
 };
 
 build({