diff --git a/webpack.config.js b/webpack.config.js
index 27d32f7fa3..97772ea0c9 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -20,6 +20,8 @@ const cssThemes = {
     "theme-legacy-light": "./node_modules/matrix-react-sdk/res/themes/legacy-light/css/legacy-light.scss",
     "theme-legacy-dark": "./node_modules/matrix-react-sdk/res/themes/legacy-dark/css/legacy-dark.scss",
     "theme-light": "./node_modules/matrix-react-sdk/res/themes/light/css/light.scss",
+    "theme-light-high-contrast":
+        "./node_modules/matrix-react-sdk/res/themes/light-high-contrast/css/light-high-contrast.scss",
     "theme-dark": "./node_modules/matrix-react-sdk/res/themes/dark/css/dark.scss",
     "theme-light-custom": "./node_modules/matrix-react-sdk/res/themes/light-custom/css/light-custom.scss",
     "theme-dark-custom": "./node_modules/matrix-react-sdk/res/themes/dark-custom/css/dark-custom.scss",