diff --git a/config/pixelfed.php b/config/pixelfed.php
index fcdb1a4b..521ccef7 100644
--- a/config/pixelfed.php
+++ b/config/pixelfed.php
@@ -286,4 +286,7 @@ return [
 	'max_altext_length' => env('PF_MEDIA_MAX_ALTTEXT_LENGTH', 1000),
 
 	'allow_app_registration' => env('PF_ALLOW_APP_REGISTRATION', true),
+
+    'app_registration_rate_limit_attempts' => env('PF_IAR_RL_ATTEMPTS', 3),
+    'app_registration_rate_limit_decay' => env('PF_IAR_RL_DECAY', 1800),
 ];