diff --git a/web/postcss.config.js b/web/postcss.config.js
index ec7e6949f5..ee23f7f171 100644
--- a/web/postcss.config.js
+++ b/web/postcss.config.js
@@ -4,7 +4,7 @@ const path = require("path");
 
 const {media_breakpoints} = require("./src/css_variables");
 
-module.exports = ({file}) => ({
+const config = ({file}) => ({
     plugins: [
         (file.basename ?? path.basename(file)) === "dark_theme.css" &&
             // Add postcss-import plugin with postcss-prefixwrap to handle
@@ -22,3 +22,4 @@ module.exports = ({file}) => ({
         }),
     ],
 });
+module.exports = config;
diff --git a/web/webpack.config.ts b/web/webpack.config.ts
index dc0b153b69..1b6034386c 100644
--- a/web/webpack.config.ts
+++ b/web/webpack.config.ts
@@ -13,7 +13,7 @@ import DebugRequirePlugin from "./debug-require-webpack-plugin";
 import assets from "./webpack.assets.json";
 import dev_assets from "./webpack.dev-assets.json";
 
-export default (
+const config = (
     env: {minimize?: boolean; ZULIP_VERSION?: string} = {},
     argv: {mode?: string},
 ): webpack.Configuration[] => {
@@ -272,3 +272,4 @@ export default (
 
     return [frontendConfig, serverConfig];
 };
+export default config;