diff --git a/src/NamiUser.php b/src/NamiUser.php
index 15784e5..b1b50df 100644
--- a/src/NamiUser.php
+++ b/src/NamiUser.php
@@ -55,7 +55,7 @@ class NamiUser implements Authenticatable {
     }
 
     public function getLastname() {
-        return $this->firstname;
+        return $this->lastname;
     }
 
     public function getAuthIdentifier() {