diff --git a/package.json b/package.json
index be154d9..5329e8b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ts-sinon",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "description": "sinon library extension to stub whole object and interfaces",
   "author": {
     "name": "Tomasz Tarnowski",
diff --git a/src/index.ts b/src/index.ts
index 7afc256..f8fa312 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -23,7 +23,7 @@ export function stubObject<T extends object>(object: T, methods?: ObjectMethodsK
     ];
 
     for (let method in object) {
-        if (object.hasOwnProperty(method) && typeof object[method] == "function") {
+        if (typeof object[method] == "function") {
             objectMethods.push(method);
         }
     }    
@@ -40,10 +40,8 @@ export function stubObject<T extends object>(object: T, methods?: ObjectMethodsK
         }
     } else if (typeof methods == "object") {
         for (let method in methods) {
-            if (methods.hasOwnProperty(method)) {
-                stubObject[<string>method] = sinon.stub();
-                stubObject[<string>method].returns(methods[method]);
-            }
+            stubObject[<string>method] = sinon.stub();
+            stubObject[<string>method].returns(methods[method]);
         }
     } else {
         for (let method of objectMethods) {