diff --git a/tests/test_raid.py b/tests/test_raid.py
index 2fbb45e053f2b4d54e3cb60d2ef30bc0fe0de422..a80245ae16bf7d43a89708d90e926b1281d4ece5 100755
--- a/tests/test_raid.py
+++ b/tests/test_raid.py
@@ -30,7 +30,9 @@ def check_raid(dev):
 if os.path.isfile('/proc/mdstat'):
     all_ok = True
     for r in glob.glob('/dev/md*'):
-        all_ok = min(check_raid(r), all_ok)
+        # ignore /dev/md folder
+        if os.path.isfile(r):
+            all_ok = min(check_raid(r), all_ok)
     if all_ok:
         print_green('Everything fine')
     else: