diff --git a/src/Illuminate/Database/Eloquent/Model.php b/src/Illuminate/Database/Eloquent/Model.php
index d7c7d0752e6f..0d80a710b9e9 100755
--- a/src/Illuminate/Database/Eloquent/Model.php
+++ b/src/Illuminate/Database/Eloquent/Model.php
@@ -3466,15 +3466,7 @@ public function offsetUnset($offset)
      */
     public function __isset($key)
     {
-        if (isset($this->attributes[$key]) || isset($this->relations[$key])) {
-            return true;
-        }
-
-        if (method_exists($this, $key) && $this->$key && isset($this->relations[$key])) {
-            return true;
-        }
-
-        return $this->hasGetMutator($key) && ! is_null($this->getAttributeValue($key));
+        return ! is_null($this->getAttribute($key));
     }
 
     /**