diff --git a/package.json b/package.json
index 9862536..137aaed 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@ztimson/utils",
-	"version": "0.20.5",
+	"version": "0.20.6",
 	"description": "Utility library",
 	"author": "Zak Timson",
 	"license": "MIT",
diff --git a/src/cache.ts b/src/cache.ts
index 3397f77..85d110f 100644
--- a/src/cache.ts
+++ b/src/cache.ts
@@ -25,7 +25,7 @@ export class Cache<K extends string | number | symbol, T> {
 	 * @param options
 	 */
 	constructor(public readonly key?: keyof T, public readonly options: CacheOptions = {}) {
-		if(options.storageKey && !options.storage && window?.localStorage)
+		if(options.storageKey && !options.storage && window && window?.localStorage)
 			options.storage = window.localStorage;
 		if(options.storageKey && options.storage) {
 			const stored = options.storage.getItem(options.storageKey);