diff --git a/kiauh/core/backup_manager/backup_manager.py b/kiauh/core/backup_manager/backup_manager.py
index 556346d..d5cfca5 100644
--- a/kiauh/core/backup_manager/backup_manager.py
+++ b/kiauh/core/backup_manager/backup_manager.py
@@ -13,15 +13,17 @@ import shutil
 from pathlib import Path
 from typing import List
 
-from kiauh import KIAUH_BACKUP_DIR
+from kiauh.core.backup_manager import BACKUP_ROOT_DIR
 from kiauh.utils.common import get_current_date
 from kiauh.utils.logger import Logger
 
 
+# noinspection PyUnusedLocal
 # noinspection PyMethodMayBeStatic
 class BackupManager:
-    def __init__(self, backup_root_dir: Path = KIAUH_BACKUP_DIR):
+    def __init__(self, backup_root_dir: Path = BACKUP_ROOT_DIR):
         self._backup_root_dir = backup_root_dir
+        self._ignore_folders = None
 
     @property
     def backup_root_dir(self) -> Path:
@@ -31,6 +33,14 @@ class BackupManager:
     def backup_root_dir(self, value: Path):
         self._backup_root_dir = value
 
+    @property
+    def ignore_folders(self) -> List[str]:
+        return self._ignore_folders
+
+    @ignore_folders.setter
+    def ignore_folders(self, value: List[str]):
+        self._ignore_folders = value
+
     def backup_file(
         self, files: List[Path] = None, target: Path = None, custom_filename=None
     ):
@@ -56,7 +66,7 @@ class BackupManager:
 
     def backup_directory(self, name: str, source: Path, target: Path = None) -> None:
         if source is None or not Path(source).exists():
-            raise OSError
+            raise OSError("Parameter 'source' is None or Path does not exist!")
 
         target = self.backup_root_dir if target is None else target
         try:
@@ -64,9 +74,20 @@ class BackupManager:
             Logger.print_status(log)
             date = get_current_date().get("date")
             time = get_current_date().get("time")
-            shutil.copytree(source, target.joinpath(f"{name}-{date}-{time}"))
+            shutil.copytree(
+                source,
+                target.joinpath(f"{name.lower()}-{date}-{time}"),
+                ignore=self.ignore_folders_func,
+            )
         except OSError as e:
             Logger.print_error(f"Unable to backup directory '{source}':\n{e}")
             return
 
         Logger.print_ok("Backup successfull!")
+
+    def ignore_folders_func(self, dirpath, filenames):
+        return (
+            [f for f in filenames if f in self._ignore_folders]
+            if self._ignore_folders is not None
+            else []
+        )