diff --git a/package.json b/package.json
index 300cf76b6..93ea26372 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,6 @@
   "devDependencies": {
     "@types/jquery": "^3.3.1",
     "@types/mocha": "^5.2.5",
-    "@types/node": "^8.0.7",
     "eslint": "^4.11.0",
     "mocha": "^5.2.0",
     "preact": "^8.3.1",
diff --git a/src/battle-dex.ts b/src/battle-dex.ts
index 11dd95c38..25f0b3162 100644
--- a/src/battle-dex.ts
+++ b/src/battle-dex.ts
@@ -16,6 +16,9 @@
  * @license MIT
  */
 
+declare var require: any;
+declare var global: any;
+
 if (!Array.prototype.indexOf) {
 	Array.prototype.indexOf = function indexOf(searchElement, fromIndex) {
 		for (let i = (fromIndex || 0); i < this.length; i++) {