diff --git a/build/commands/lib/pylint.js b/build/commands/lib/pylint.js
index 463e2819070..148d29c8ad6 100644
--- a/build/commands/lib/pylint.js
+++ b/build/commands/lib/pylint.js
@@ -21,7 +21,8 @@ const deleteFile = (path) => {
 }
 
 const getDepotToolsPath = () => {
-  const depotToolsPath = path.resolve(__dirname, '../../../vendor/depot_tools')
+  const depotToolsPath =
+    path.join(config.rootDir, 'src/brave/vendor/depot_tools')
   if (!fs.existsSync(depotToolsPath)) {
     console.warn('Depot Tools path [' + depotToolsPath + '] doesn\'t exist')
     return ''
@@ -48,7 +49,7 @@ const ensureDepotToolsInPath = (options) => {
 
 const getDefaultOptions = () => {
   let options = Object.assign({}, config.defaultOptions)
-  options.cwd = path.resolve(__dirname, '../../..')
+  options.cwd = path.join(config.rootDir, 'src/brave')
   ensureDepotToolsInPath(options)
   return options
 }
diff --git a/build/commands/lib/root.js b/build/commands/lib/root.js
index d93a85f10dd..6cd71ade473 100644
--- a/build/commands/lib/root.js
+++ b/build/commands/lib/root.js
@@ -1,3 +1,11 @@
 const path = require('path')
+const fs = require('fs')
 
-module.exports = path.resolve(__dirname, '..', '..', '..', '..', '..')
+let dirName = __dirname
+
+// Use fs.realpathSync to normalize the path(__dirname could be c:\.. or C:\..).
+if (process.platform === 'win32') {
+  dirName = fs.realpathSync.native(dirName)
+}
+
+module.exports = path.resolve(dirName, '..', '..', '..', '..', '..')