diff --git a/lib/cmdlib.py b/lib/cmdlib.py
index bb41146e100fff08f4cc3129c8c61707be7992a2..fd73ae97b70299e3aeb0c4d45c460061539e24c8 100644
--- a/lib/cmdlib.py
+++ b/lib/cmdlib.py
@@ -3100,9 +3100,9 @@ class LUClusterVerifyGroup(LogicalUnit, _VerifyErrors):
       node_verify_param[constants.NV_VGLIST] = None
       node_verify_param[constants.NV_LVLIST] = vg_name
       node_verify_param[constants.NV_PVLIST] = [vg_name]
-      node_verify_param[constants.NV_DRBDLIST] = None
 
     if drbd_helper:
+      node_verify_param[constants.NV_DRBDLIST] = None
       node_verify_param[constants.NV_DRBDHELPER] = drbd_helper
 
     # bridge checks