diff --git a/.gitignore b/.gitignore
index 4a08bb1..aea12e5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,8 +29,18 @@ bower_components/
 # Terraform
 /terraform/.terraform
 
+# Compiled templates
 /src/diff2html-templates.*
+
+# Compiled website
 /docs/
+
+# Bundles temporary typescript files compiled by webpack
+/bundles-out/
+
+# Web bundles
 /bundles/
+# CommonJS library
 /lib/
+# ESNext library
 /lib-esm/
diff --git a/package.json b/package.json
index 6b53273..61cc32d 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "format:check": "npm run prettier --check",
     "format:fix": "npm run prettier --write",
     "build": "npm run build:css && npm run build:templates && npm run build:commonjs && npm run build:esm && npm run build:bundles && npm run build:website",
-    "build:commonjs": "rm -rf lib; tsc -p tsconfig.json --outDir lib",
+    "build:commonjs": "rm -rf lib; tsc -p tsconfig.json -m CommonJS --outDir lib",
     "build:esm": "rm -rf lib-esm; tsc -p tsconfig.json -m ESNext --outDir lib-esm",
     "build:bundles": "rm -rf ./bundles/js; webpack --mode production --config webpack.bundles.ts",
     "build:css": "rm -rf ./bundles/css; postcss --config ./postcss.config.js --no-map -o ./bundles/css/diff2html.min.css ./src/ui/css/diff2html.css",
diff --git a/tsconfig.json b/tsconfig.json
index e9bd6fa..e8fdd00 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -2,7 +2,7 @@
   "include": ["*env.d.ts", "src/**/*", "./typings/**/*"],
   "exclude": ["node_modules", "src/__tests__/**"],
   "compilerOptions": {
-    "outDir": "lib",
+    "outDir": "bundles-out",
     "module": "CommonJS",
     "moduleResolution": "Node",
     "target": "ES6",