diff --git a/src/rewrite/index.js b/src/rewrite/index.js
index 2b272c4..200045f 100644
--- a/src/rewrite/index.js
+++ b/src/rewrite/index.js
@@ -3,7 +3,7 @@ import CSS from './css.js';
 import JS from './js.js';
 import setCookie from 'set-cookie-parser';
 import { xor, base64, plain } from './codecs.js';
-import mimeTypes from './mime.js';
+import mimeTypes from 'mime-types';
 import {
     validateCookie,
     db,
diff --git a/src/uv.d.ts b/src/uv.d.ts
new file mode 100644
index 0000000..c08744d
--- /dev/null
+++ b/src/uv.d.ts
@@ -0,0 +1,5 @@
+const Ultraviolet: typeof import('./rewrite/index').default;
+const UVClient: typeof import('./client/index').default;
+
+export type UltravioletCtor = typeof Ultraviolet;
+export type UVClientCtor = typeof UVClient;
diff --git a/src/uv.handler.js b/src/uv.handler.js
index 4ba612c..ffe277e 100644
--- a/src/uv.handler.js
+++ b/src/uv.handler.js
@@ -1,18 +1,10 @@
 /**
- * @typedef {import("./rewrite/index.js").default} Ultraviolet
- */
-
-/**
- * @typedef {import("./client/index.js").default} UVClient
- */
-
-/**
- * @type {typeof Ultraviolet}
+ * @type {import('./uv').UltravioletCtor}
  */
 const Ultraviolet = globalThis.Ultraviolet;
 
 /**
- * @type {typeof UVClient}
+ * @type {import('./uv').UVClientCtor}
  */
 const UVClient = globalThis.UVClient;
 
diff --git a/src/uv.sw.js b/src/uv.sw.js
index 47049d5..cb8a6ef 100644
--- a/src/uv.sw.js
+++ b/src/uv.sw.js
@@ -3,11 +3,7 @@
 // This is to allow us to produce a generic bundle with no hard-coded paths.
 
 /**
- * @typedef {import("./rewrite/index.js").default} Ultraviolet
- */
-
-/**
- * @type {typeof Ultraviolet}
+ * @type {import('./uv').UltravioletCtor}
  */
 const Ultraviolet = globalThis.Ultraviolet;