diff --git a/src/Parameters.php b/src/Parameters.php
index 4993564..33cafa8 100644
--- a/src/Parameters.php
+++ b/src/Parameters.php
@@ -40,8 +40,13 @@ public function post($key = NULL, $isRequired = FALSE, array $validators = array
 				$return = isset($post[$key]) ? $post[$key] : null;
 			else
 				$return = $post;
-		} else
-			$return = $this->request->getPost($key);
+		} else {
+			if($key)
+				$return = $this->request->getPost($key);
+			else
+				$return = $this->request->getPost();
+		}
+
 		$return = $this->validator->validate($key, $isRequired, $validators, $return);
 		return $return;
 	}