diff --git a/docs/docs/05-reusable-components.ko-KR.md b/docs/docs/05-reusable-components.ko-KR.md
index 6682be7ab0..f721389b8c 100644
--- a/docs/docs/05-reusable-components.ko-KR.md
+++ b/docs/docs/05-reusable-components.ko-KR.md
@@ -152,7 +152,7 @@ var SetIntervalMixin = {
     this.intervals.push(setInterval.apply(null, arguments));
   },
   componentWillUnmount: function() {
-    this.intervals.map(clearInterval);
+    this.intervals.forEach(clearInterval);
   }
 };
 
diff --git a/docs/docs/10.4-test-utils.ko-KR.md b/docs/docs/10.4-test-utils.ko-KR.md
index fa4638ff54..4db40ce6f7 100644
--- a/docs/docs/10.4-test-utils.ko-KR.md
+++ b/docs/docs/10.4-test-utils.ko-KR.md
@@ -30,7 +30,7 @@ React.addons.TestUtils.Simulate.keyDown(node, {key: "Enter"});
 ### renderIntoDocument
 
 ```javascript
-ReactComponent renderIntoDocument(ReactComponent instance)
+ReactComponent renderIntoDocument(ReactElement instance)
 ```
 
 문서의 detach된 DOM 노드에 컴포넌트를 렌더합니다. **이 기능은 DOM을 필요로 합니다.**