diff --git a/package.json b/package.json
index 689b1d59..5cf268e0 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
   "scripts": {
     "build": "yarn run build:ts && yarn run gen:locale && yarn run build:extension",
     "gen:locale": "yarn run ts-node scripts/generateLocale.ts",
-    "build:ts": "yarn run clean:ts && rollup -c && sed -i '/setTimeout/d' dist/thirdparty/prismjs.js && sed -i 's/var\\ /let\\ /g' dist/{extension,prefs}.js",
+    "build:ts": "yarn run clean:ts && rollup -c --failAfterWarnings && sed -i '/setTimeout/d' dist/thirdparty/prismjs.js && sed -i 's/var\\ /let\\ /g' dist/{extension,prefs}.js",
     "clean:ts": "rm -rf ./dist",
     "build:extension": "yarn run build:schema",
     "build:schema": "yarn run clean:schema && glib-compile-schemas ./resources/schemas --targetdir=./dist/schemas/",
diff --git a/rollup.config.mjs b/rollup.config.mjs
index ea8c1866..360a0ebb 100644
--- a/rollup.config.mjs
+++ b/rollup.config.mjs
@@ -97,6 +97,8 @@ const thirdParty = [
   'highlight.js/lib/languages/yaml',
 ];
 
+const gjsModules = [...Object.keys(importsGeneral), ...Object.keys(importsPrefs)];
+
 const GlobalEntries = {};
 
 const thirdPartyBuild = thirdParty.map((pkg) => {
@@ -143,7 +145,7 @@ const builds = [
         constBindings: true,
       },
     },
-    external: thirdParty,
+    external: [...thirdParty, ...gjsModules],
     plugins: [
       commonjs(),
       nodeResolve({
@@ -184,7 +186,7 @@ const builds = [
     treeshake: {
       moduleSideEffects: 'no-external',
     },
-    external: thirdParty,
+    external: [...thirdParty, ...gjsModules],
     plugins: [
       commonjs(),
       nodeResolve({