diff --git a/framework/core/src/User/EmailToken.php b/framework/core/src/User/EmailToken.php
index ac143ea12..5de96e2e6 100644
--- a/framework/core/src/User/EmailToken.php
+++ b/framework/core/src/User/EmailToken.php
@@ -64,7 +64,7 @@ class EmailToken extends AbstractModel
      */
     public function user()
     {
-        return $this->belongsTo('Flarum\User');
+        return $this->belongsTo(User::class);
     }
 
     /**
diff --git a/framework/core/src/User/PasswordToken.php b/framework/core/src/User/PasswordToken.php
index 53b955eda..5c8070ead 100644
--- a/framework/core/src/User/PasswordToken.php
+++ b/framework/core/src/User/PasswordToken.php
@@ -59,6 +59,6 @@ class PasswordToken extends AbstractModel
      */
     public function user()
     {
-        return $this->belongsTo('Flarum\User');
+        return $this->belongsTo(User::class);
     }
 }