diff --git a/tdutils/td/utils/port/FileFd.cpp b/tdutils/td/utils/port/FileFd.cpp
index 912885759..5861136b4 100644
--- a/tdutils/td/utils/port/FileFd.cpp
+++ b/tdutils/td/utils/port/FileFd.cpp
@@ -286,11 +286,32 @@ Result<size_t> FileFd::pread(MutableSlice slice, int64 offset) const {
 static std::mutex in_process_lock_mutex;
 static std::unordered_set<string> locked_files;
 
-Status FileFd::lock(const LockFlags flags, const string &path, int32 max_tries) {
+static Status create_local_lock(const string &path, int32 max_tries) {
   if (max_tries <= 0) {
     return Status::Error(0, "Can't lock file: wrong max_tries");
   }
 
+  while (true) {
+    {  // mutex lock scope
+      std::lock_guard<std::mutex> lock(in_process_lock_mutex);
+      if (locked_files.find(path) == locked_files.end()) {
+        VLOG(fd) << "Lock file \"" << path << '"';
+        locked_files.insert(path);
+        return Status::OK();
+      }
+    }
+
+    if (--max_tries <= 0) {
+      break;
+    }
+
+    usleep_for(100000);
+  }
+  return Status::Error(
+      0, PSLICE() << "Can't lock file \"" << path << "\", because it is already in use by current program");
+}
+
+Status FileFd::lock(const LockFlags flags, const string &path, int32 max_tries) {
   bool need_local_unlock = false;
   if (!path.empty()) {
     if (flags == LockFlags::Unlock) {
@@ -300,25 +321,8 @@ Status FileFd::lock(const LockFlags flags, const string &path, int32 max_tries)
     } else {
       CHECK(flags == LockFlags::Write);
       VLOG(fd) << "Trying to lock file \"" << path << '"';
-      while (true) {
-        {  // mutex lock scope
-          std::lock_guard<std::mutex> lock(in_process_lock_mutex);
-          if (locked_files.find(path) == locked_files.end()) {
-            VLOG(fd) << "Lock file \"" << path << '"';
-            need_local_unlock = true;
-            locked_files.insert(path);
-            break;
-          }
-        }
-
-        if (--max_tries > 0) {
-          usleep_for(100000);
-          continue;
-        }
-
-        return Status::Error(
-            0, PSLICE() << "Can't lock file \"" << path << "\", because it is already in use by current program");
-      }
+      TRY_STATUS(create_local_lock(path, max_tries));
+      need_local_unlock = true;
     }
   }
   SCOPE_EXIT {