diff --git a/Trustly/Api/api.php b/Trustly/Api/api.php
index c9fee7d..d5abcab 100644
--- a/Trustly/Api/api.php
+++ b/Trustly/Api/api.php
@@ -223,7 +223,7 @@ public function verifyTrustlySignedResponse($response) {
 	 * Trustly_Data_JSONRPCNotificationRequest) has been signed with the
 	 * correct key originating from the host
 	 *
-	 * @param Trustly_Data_JSONRPCNotificationRequest incoming notification
+	 * @param Trustly_Data_JSONRPCNotificationRequest $notification incoming notification
 	 *
 	 * @return boolean Indicating if the data was indeed properly signed by the
 	 *		API we think we are talking to
diff --git a/Trustly/Api/signed.php b/Trustly/Api/signed.php
index 69d0b5b..6682bb6 100644
--- a/Trustly/Api/signed.php
+++ b/Trustly/Api/signed.php
@@ -515,7 +515,7 @@ public function deposit($notificationurl, $enduserid, $messageid,
 	 * @param float $amount The amount to refund the customer with exactly two
 	 *		decimals. Only digits. Use dot (.) as decimal separator.
 	 *
-	 * @param string currency The currency of the amount to refund the
+	 * @param string $currency The currency of the amount to refund the
 	 *		customer.
 	 *
 	 * @return Trustly_Data_JSONRPCSignedResponse
diff --git a/Trustly/Data/jsonrpcnotificationrequest.php b/Trustly/Data/jsonrpcnotificationrequest.php
index 6be3c5f..b59dc11 100644
--- a/Trustly/Data/jsonrpcnotificationrequest.php
+++ b/Trustly/Data/jsonrpcnotificationrequest.php
@@ -52,7 +52,7 @@ class Trustly_Data_JSONRPCNotificationRequest extends Trustly_Data {
 	 *		request seems to be valid but is for a JSON RPC version we do not
 	 *		support.
 	 *
-	 * @param string $notification RAW incoming notification body
+	 * @param string $notification_body RAW incoming notification body
 	 */
 	public function __construct($notification_body) {
 		parent::__construct();
diff --git a/Trustly/Data/request.php b/Trustly/Data/request.php
index 3daaca7..aa6994e 100644
--- a/Trustly/Data/request.php
+++ b/Trustly/Data/request.php
@@ -75,7 +75,9 @@ public function getUUID() {
 	/**
 	 * Convenience function for setting the uuid in the call
 	 *
-	 * @param string uuid
+	 * @param string $uuid
+	 *
+	 * @return void
 	 */
 	public function setUUID($uuid) {
 		$this->set('uuid', $uuid);
@@ -95,7 +97,9 @@ public function getMethod() {
 	/**
 	 * Set the medhod in the call
 	 *
-	 * @param string method name
+	 * @param string $method method name
+	 *
+	 * @return void
 	 */
 	public function setMethod($method) {
 		$this->method = $method;