diff --git a/tensorflow/core/platform/path.cc b/tensorflow/core/platform/path.cc
index 1e88328aace..00e3f0eca28 100644
--- a/tensorflow/core/platform/path.cc
+++ b/tensorflow/core/platform/path.cc
@@ -38,7 +38,11 @@ namespace io {
 namespace internal {
 namespace {
 
+#if defined(PLATFORM_WINDOWS)
+const char kPathSep[] = "\\";
+#else
 const char kPathSep[] = "/";
+#endif  // PLATFORM_WINDOWS
 
 bool FixBazelEnvPath(const char* path, string* out) {
   if (path == nullptr) return false;