diff --git a/dblayeroo.php b/dblayeroo.php
index 6880c44..5f0774e 100644
--- a/dblayeroo.php
+++ b/dblayeroo.php
@@ -1370,7 +1370,9 @@ class dblayeroo
     $this->limitExpression = "";
     $this->setValues = array ();
     $this->setType = array ();
-    $this->setForeignObj = array ();
+    // The foreign keys can be defined in the constructor for all the
+    // modifications checks. No need to remove them
+    //$this->setForeignObj = array ();
   }
   /* }}} */