diff --git a/lib/bdev.py b/lib/bdev.py
index e328544a5e58ec159fc12c7cf7930233740f578f..eefbc06abe6cee37ea7bc19aced13e7b6f9180e7 100644
--- a/lib/bdev.py
+++ b/lib/bdev.py
@@ -1806,9 +1806,9 @@ class DRBD8(BaseDRBD):
     """
     if not cls._IsValidMeta(meta):
       return False
-    result = utils.RunCmd(["drbdsetup", cls._DevPath(minor), "disk",
-                           backend, meta, "0", "-e", "detach",
-                           "--create-device"])
+    args = ["drbdsetup", cls._DevPath(minor), "disk",
+            backend, meta, "0", "-e", "detach", "--create-device"]
+    result = utils.RunCmd(args)
     if result.failed:
       logger.Error("Can't attach local disk: %s" % result.output)
     return not result.failed