diff --git a/app/Models/User.php b/app/Models/User.php
index 229f0c0..ee4b3ba 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -51,7 +51,7 @@ public function toDrops($amount = 1)
 
         $cache_key = 'user_drops_' . $this->id;
 
-        if ($amount === 0) {
+        if ($amount === 0 || $amount === null) {
             return $this;
         }