diff --git a/package.json b/package.json
index 2ca06bb..adab0a0 100644
--- a/package.json
+++ b/package.json
@@ -11,9 +11,9 @@
       "import": "./dist/regex.mjs",
       "require": "./dist/regex.cjs"
     },
-    "./atomic": {
-      "types": "./types/atomic.d.ts",
-      "import": "./src/atomic.js"
+    "./internals": {
+      "types": "./types/internals.d.ts",
+      "import": "./src/internals.js"
     }
   },
   "browser": "./dist/regex.min.js",
@@ -22,7 +22,7 @@
     "bundle:global": "esbuild src/regex.js --global-name=Regex --bundle --minify --sourcemap --outfile=dist/regex.min.js",
     "bundle:esm": "esbuild src/regex.js --format=esm --bundle --sourcemap --outfile=dist/regex.mjs",
     "bundle:cjs": "esbuild src/regex.js --format=cjs --bundle --sourcemap --outfile=dist/regex.cjs",
-    "types": "tsc src/regex.js --rootDir src --declaration --allowJs --emitDeclarationOnly --outDir types",
+    "types": "tsc src/regex.js src/internals.js --rootDir src --declaration --allowJs --emitDeclarationOnly --outDir types",
     "prebuild": "rm -rf dist/* types/*",
     "build": "npm run bundle:global && npm run bundle:esm && npm run bundle:cjs && npm run types",
     "pretest": "npm run build",
diff --git a/src/internals.js b/src/internals.js
new file mode 100644
index 0000000..7fd821c
--- /dev/null
+++ b/src/internals.js
@@ -0,0 +1,2 @@
+export {atomic, possessive} from './atomic.js';
+export {RegExpSubclass} from './subclass.js';