diff --git a/DEPS b/DEPS
index 5cf5db75b03..00f295dd253 100644
--- a/DEPS
+++ b/DEPS
@@ -444,10 +444,10 @@ hooks = [
   {
     'name': 'frontend_server_packages',
     'pattern': '.',
-    'condition': 'host_os == "windows"',
+    'condition': 'host_os == "win"',
     'cwd': 'src/flutter/frontend_server/',
     'action': [
-      '../../../src/third_party/dart/tools/sdks/win/dart-sdk/bin/pub.bat', 'get',
+      '..\\..\\..\\src\\third_party\\dart\\tools\\sdks\\win\\dart-sdk\\bin\\pub.bat', 'get',
     ],
   },
   {