diff --git a/workbench_moderation.module b/workbench_moderation.module
index be8c7f3..89ff046 100644
--- a/workbench_moderation.module
+++ b/workbench_moderation.module
@@ -2530,16 +2530,17 @@ function workbench_moderation_node_edit_context($arg = NULL, $conf = NULL, $empt
  */
 function workbench_moderation_drafty_predelete_revision($entity_type, $entity_id, $revision_id, $replaced_by) {
   if ($entity_type == 'node') {
-    $revision = node_load($entity_id, $revision_id);
-
     // Preserve the revision timestamp and uid from the old revision.
-    db_update('node_revision')
-      ->fields(array(
-        'timestamp' => $revision->revision_timestamp,
-        'uid' => $revision->revision_uid,
-      ))
-      ->condition('vid', $replaced_by)
-      ->execute();
+    $revision = node_load($entity_id, $revision_id);
+    if ($revision !== NULL) {
+      db_update('node_revision')
+        ->fields(array(
+          'timestamp' => $revision->revision_timestamp,
+          'uid' => $revision->revision_uid,
+        ))
+        ->condition('vid', $replaced_by)
+        ->execute();
+    }
 
     // Remove the incorrect history from the new revision.
     db_delete('workbench_moderation_node_history')