diff --git a/index.d.ts b/index.d.ts
new file mode 100644
index 00000000..45218b86
--- /dev/null
+++ b/index.d.ts
@@ -0,0 +1,22 @@
+declare module 'https-proxy-agent' {
+    import * as https from 'https'
+
+    namespace HttpsProxyAgent {
+        interface HttpsProxyAgentOptions {
+            host: string
+            port: number
+            secureProxy?: boolean
+            headers?: {
+                [key: string]: string
+            }
+            [key: string]: any
+        }
+    }
+    
+    // HttpsProxyAgent doesnt *actually* extend https.Agent, but for my purposes I want it to pretend that it does
+    class HttpsProxyAgent extends https.Agent {
+        constructor(opts: HttpsProxyAgent.HttpsProxyAgentOptions)
+    }
+
+    export = HttpsProxyAgent
+}
diff --git a/package.json b/package.json
index 704dc46d..dae109f6 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "2.2.1",
   "description": "An HTTP(s) proxy `http.Agent` implementation for HTTPS",
   "main": "./index.js",
+  "types": "./index.d.ts",
   "scripts": {
     "test": "mocha --reporter spec"
   },