diff --git a/validator/db/archive-manager.cpp b/validator/db/archive-manager.cpp
index 6bea5db6..bd239bfc 100644
--- a/validator/db/archive-manager.cpp
+++ b/validator/db/archive-manager.cpp
@@ -906,7 +906,7 @@ void ArchiveManager::start_up() {
   td::WalkPath::run(db_root_ + "/archive/states/", [&](td::CSlice fname, td::WalkPath::Type t) -> void {
     if (t == td::WalkPath::Type::NotDir) {
       LOG(ERROR) << "checking file " << fname;
-      auto pos = fname.rfind('/');
+      auto pos = fname.rfind(TD_DIR_SLASH);
       if (pos != td::Slice::npos) {
         fname.remove_prefix(pos + 1);
       }
diff --git a/validator/manager.cpp b/validator/manager.cpp
index 5199eb01..e22616ea 100644
--- a/validator/manager.cpp
+++ b/validator/manager.cpp
@@ -1464,7 +1464,7 @@ void ValidatorManagerImpl::start_up() {
   auto S = td::WalkPath::run(to_import_dir, [&](td::CSlice cfname, td::WalkPath::Type t) -> void {
     auto fname = td::Slice(cfname);
     if (t == td::WalkPath::Type::NotDir) {
-      auto d = fname.rfind('/');
+      auto d = fname.rfind(TD_DIR_SLASH);
       if (d != td::Slice::npos) {
         fname = fname.substr(d + 1);
       }