diff --git a/nova/virt/vmwareapi/vmops.py b/nova/virt/vmwareapi/vmops.py
index 4cfcdad24ff0..30f7a46ec7f3 100644
--- a/nova/virt/vmwareapi/vmops.py
+++ b/nova/virt/vmwareapi/vmops.py
@@ -637,7 +637,7 @@ class VMwareVMOps(object):
             else:
                 self._use_disk_image_as_full_clone(vm_ref, vi)
 
-        if len(block_device_mapping) > 0:
+        if block_device_mapping:
             msg = "Block device information present: %s" % block_device_info
             # NOTE(mriedem): block_device_info can contain an auth_password
             # so we have to scrub the message before logging it.