diff --git a/pym/cl_utils.py b/pym/cl_utils.py
index 1fb3743..3edf4f7 100644
--- a/pym/cl_utils.py
+++ b/pym/cl_utils.py
@@ -1333,6 +1333,9 @@ def refreshUdev():
     """Run command which refresh information about device in udev"""
     udevadm = getProgPath('/sbin/udevadm')
     if udevadm:
+        blkidFile = '/etc/blkid.tab'
+        if path.exists(blkidFile):
+            os.unlink(blkidFile)
         process(udevadm,"trigger","--subsystem-match","block").success()
 
 def getPasswdUsers(minId=1000,maxId=65000):