diff --git a/clone.pages.inc b/clone.pages.inc
index c78fe41..474d77c 100644
--- a/clone.pages.inc
+++ b/clone.pages.inc
@@ -253,6 +253,12 @@ function _clone_node_prepare($original_node, $prefix_title = FALSE, $account = N
       $node->$key = (int) in_array($key, $node_options);
     }
   }
+
+  // Do not clone workbench_moderation data.
+  if (isset($node->workbench_moderation)) {
+    $node->workbench_moderation = NULL;
+  }
+
   return $node;
 }