diff --git a/lectures/11_list_implementation/README.md b/lectures/11_list_implementation/README.md
index de1d9d7..4bc26c8 100644
--- a/lectures/11_list_implementation/README.md
+++ b/lectures/11_list_implementation/README.md
@@ -32,11 +32,11 @@ trying to use ->next and ->prev with STL list iterators.)
 ```cpp
 template <class T> class Node {
 public:
-Node() : next_(NULL), prev_(NULL) {}
-Node(const T& v) : value_(v), next_(NULL), prev_(NULL) {}
-T value_;
-Node<T>* next_;
-Node<T>* prev_;
+	Node() : next_(NULL), prev_(NULL) {}
+	Node(const T& v) : value_(v), next_(NULL), prev_(NULL) {}
+	T value_;
+	Node<T>* next_;
+	Node<T>* prev_;
 };
 ```