diff --git a/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.chinese.md b/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.chinese.md
index ab88a45dc2..88449a6f17 100644
--- a/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.chinese.md
+++ b/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.chinese.md
@@ -57,7 +57,7 @@ function LinkedList() {
     if(head === null){
         head = node;
     } else {
-        currentNode = head;
+        var currentNode = head;
 
         while(currentNode.next){
             currentNode  = currentNode.next;
diff --git a/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list-by-index.chinese.md b/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list-by-index.chinese.md
index bfa1617cb2..8a5eed18f6 100644
--- a/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list-by-index.chinese.md
+++ b/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list-by-index.chinese.md
@@ -60,7 +60,7 @@ function LinkedList() {
     if(head === null){
         head = node;
     } else {
-        currentNode = head;
+        var currentNode = head;
 
         while(currentNode.next){
             currentNode  = currentNode.next;
diff --git a/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list.chinese.md b/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list.chinese.md
index b7d8c067cd..1d2c26939f 100644
--- a/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list.chinese.md
+++ b/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list.chinese.md
@@ -58,7 +58,7 @@ function LinkedList() {
     if(head === null){
         head = node;
     } else {
-        currentNode = head;
+        var currentNode = head;
 
         while(currentNode.next){
             currentNode  = currentNode.next;
diff --git a/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/search-within-a-linked-list.chinese.md b/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/search-within-a-linked-list.chinese.md
index 8353d337c5..21266b41f9 100644
--- a/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/search-within-a-linked-list.chinese.md
+++ b/curriculum/challenges/chinese/08-coding-interview-prep/data-structures/search-within-a-linked-list.chinese.md
@@ -60,7 +60,7 @@ function LinkedList() {
     if(head === null){
         head = node;
     } else {
-        currentNode = head;
+        var currentNode = head;
 
         while(currentNode.next){
             currentNode  = currentNode.next;