diff --git a/modules/node/node.module b/modules/node/node.module
index 57133c6..9ce8116 100644
--- a/modules/node/node.module
+++ b/modules/node/node.module
@@ -3309,7 +3309,12 @@ function _node_query_node_access_alter($query, $type) {
         $field = 'entity_id';
       }
       $subquery->where("$nalias.$field = na.nid");
-      $query->exists($subquery);
+      if ($table['join type'] ==  'LEFT') {
+        // then this table can be null.
+        $query->condition(db_or()->isNull("$nalias.$field")->exists($subquery));
+      } else {
+        $query->exists($subquery);
+      }
     }
   }