diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index 5e6f698..0fcdbd8 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -706,7 +706,7 @@
 	 * @param	string
 	 * @return	bool
 	 */
-	public function valid_email($address)
+	public function valid_email($email)
 	{
 		return filter_var($email, FILTER_VALIDATE_EMAIL);
 	}
diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index 9ef5872..f3087f8 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -1076,7 +1076,7 @@
 	 */
 	public function valid_email($str)
 	{
-		return filter_var($email, FILTER_VALIDATE_EMAIL);
+		return filter_var($str, FILTER_VALIDATE_EMAIL);
 	}
 
 	// --------------------------------------------------------------------