diff --git a/docs/customisations.md b/docs/customisations.md
index 2c36b54f9b..39748ebcf6 100644
--- a/docs/customisations.md
+++ b/docs/customisations.md
@@ -17,11 +17,11 @@ the React SDK, you can still override it from the Element Web layer:
 2. Edit customisations points and make sure export the ones you actually want to
    activate
 3. Tweak the Element build process to use the customised module instead of the
-   default by adding this to end of the `plugins` array in `webpack.config.js`:
+   default by adding this to the `additionalPlugins` array in `webpack.config.js`:
 
 ```js
 new webpack.NormalModuleReplacementPlugin(
-    /src\/customisations\/Security.ts/,
+    /src[\/\\]customisations[\/\\]Security\.ts/,
     path.resolve(__dirname, 'src/customisations/YourNameSecurity.ts'),
 ),
 ```
diff --git a/webpack.config.js b/webpack.config.js
index cc79048bb3..2500792139 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -8,6 +8,10 @@ const webpack = require("webpack");
 let og_image_url = process.env.RIOT_OG_IMAGE_URL;
 if (!og_image_url) og_image_url = 'https://app.element.io/themes/element/img/logos/opengraph.png';
 
+const additionalPlugins = [
+    // This is where you can put your customisation replacements.
+];
+
 module.exports = (env, argv) => {
     if (process.env.CI_PACKAGE) {
         // Don't run minification for CI builds (this is only set for runs on develop)
@@ -357,6 +361,8 @@ module.exports = (env, argv) => {
                 minify: argv.mode === 'production',
                 chunks: ['usercontent'],
             }),
+
+            ...additionalPlugins,
         ],
 
         output: {