diff --git a/curriculum/challenges/russian/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.russian.md b/curriculum/challenges/russian/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.russian.md
index f3bfc9c162..102bda3dac 100644
--- a/curriculum/challenges/russian/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.russian.md
+++ b/curriculum/challenges/russian/08-coding-interview-prep/data-structures/add-elements-at-a-specific-index-in-a-linked-list.russian.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/russian/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list-by-index.russian.md b/curriculum/challenges/russian/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list-by-index.russian.md
index 5293164086..acc6ba880a 100644
--- a/curriculum/challenges/russian/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list-by-index.russian.md
+++ b/curriculum/challenges/russian/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list-by-index.russian.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/russian/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list.russian.md b/curriculum/challenges/russian/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list.russian.md
index 4744298d90..8daa165908 100644
--- a/curriculum/challenges/russian/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list.russian.md
+++ b/curriculum/challenges/russian/08-coding-interview-prep/data-structures/remove-elements-from-a-linked-list.russian.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/russian/08-coding-interview-prep/data-structures/search-within-a-linked-list.russian.md b/curriculum/challenges/russian/08-coding-interview-prep/data-structures/search-within-a-linked-list.russian.md
index 057f639401..9e1317405d 100644
--- a/curriculum/challenges/russian/08-coding-interview-prep/data-structures/search-within-a-linked-list.russian.md
+++ b/curriculum/challenges/russian/08-coding-interview-prep/data-structures/search-within-a-linked-list.russian.md
@@ -60,7 +60,7 @@ function LinkedList() {
     if(head === null){
         head = node;
     } else {
-        currentNode = head;
+        var currentNode = head;
 
         while(currentNode.next){
             currentNode  = currentNode.next;