diff --git a/test/functional/tests/io_class/io_class_common.py b/test/functional/tests/io_class/io_class_common.py
index 3e4371e..e23cbc3 100644
--- a/test/functional/tests/io_class/io_class_common.py
+++ b/test/functional/tests/io_class/io_class_common.py
@@ -7,7 +7,6 @@ from api.cas import casadm
 from api.cas import ioclass_config
 from api.cas.cache_config import CacheMode, CleaningPolicy
 from storage_devices.disk import DiskType
-from tests.conftest import base_prepare
 from core.test_run import TestRun
 from test_utils.size import Size, Unit
 
@@ -16,7 +15,6 @@ mountpoint = "/tmp/cas1-1"
 
 
 def prepare():
-    base_prepare()
     ioclass_config.remove_ioclass_config()
     cache_device = next(filter(
         lambda disk: disk.disk_type in [DiskType.optane, DiskType.nand],