diff --git a/src/driver/core/FileExplorer.ts b/src/driver/core/FileExplorer.ts
index ff27602..f10c4e0 100644
--- a/src/driver/core/FileExplorer.ts
+++ b/src/driver/core/FileExplorer.ts
@@ -145,7 +145,6 @@ const handleKeyDown: MethodCreator<
           break
 
         case 'ArrowLeft':
-          // collapse node or go to parent node
           if (expandedNodes.has(focusedNode)) {
             dispatch.call(setExpand, focusedNode, false)
           } else {
diff --git a/src/utils/treeParser.ts b/src/utils/treeParser.ts
index c0af52c..d31b4c4 100644
--- a/src/utils/treeParser.ts
+++ b/src/utils/treeParser.ts
@@ -3,7 +3,6 @@ import GitHubHelper, { MetaData, TreeData } from 'utils/GitHubHelper'
 interface BasicItem {
   name: string | null
   path: string | null
-  parent?: BasicItem | null
   mode: null
   type: string | null
   url: string | null
@@ -42,13 +41,6 @@ function sortFoldersToFront(root: Item) {
   return depthFirstSearch(root)
 }
 
-function setParentNode(root: Item, parent: Item | null = null) {
-  root.parent = parent
-  if (root.contents) {
-    root.contents.forEach(node => setParentNode(node, root))
-  }
-}
-
 function findGitModules(root: Item) {
   if (root.contents) {
     const modulesFile = root.contents.find(content => content.name === '.gitmodules')
@@ -97,8 +89,6 @@ function parse(treeData: TreeData, metaData: MetaData) {
     }
   })
 
-  setParentNode(root)
-
   return {
     gitModules: findGitModules(root),
     root: sortFoldersToFront(root),