diff --git a/types/jschannel/index.d.ts b/types/jschannel/index.d.ts
index 42145531ea..ba1ce6f61d 100644
--- a/types/jschannel/index.d.ts
+++ b/types/jschannel/index.d.ts
@@ -1,6 +1,7 @@
 // Type definitions for jschannel 1.0
 // Project: https://github.com/yochannah/jschannel
 // Definitions by: Yitzchok Gottlieb <https://github.com/yitzchok>
+//                 McFlat <https://github.com/McFlat>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.4
 
@@ -25,7 +26,7 @@ export interface Message {
 }
 
 export interface ChannelConfiguration {
-    window: any;
+    window: Window;
     origin: string;
     scope: string;
     debugOutput?: boolean;
diff --git a/types/jschannel/jschannel-tests.ts b/types/jschannel/jschannel-tests.ts
index eabd150bf2..c618eea253 100644
--- a/types/jschannel/jschannel-tests.ts
+++ b/types/jschannel/jschannel-tests.ts
@@ -1,3 +1,3 @@
 import { build } from 'jschannel';
 
-build({ window: null, origin: "*", scope: "testScope"});
+build({ window, origin: "*", scope: "testScope"});
diff --git a/types/jschannel/tsconfig.json b/types/jschannel/tsconfig.json
index 58b8ca059e..e8988e8fe1 100644
--- a/types/jschannel/tsconfig.json
+++ b/types/jschannel/tsconfig.json
@@ -2,7 +2,8 @@
     "compilerOptions": {
         "module": "commonjs",
         "lib": [
-            "es6"
+            "es6",
+            "dom"
         ],
         "noImplicitAny": true,
         "noImplicitThis": true,
@@ -20,4 +21,4 @@
         "index.d.ts",
         "jschannel-tests.ts"
     ]
-}
\ No newline at end of file
+}