diff --git a/src/Bag/Pipelines/Pipes/Validate.php b/src/Bag/Pipelines/Pipes/Validate.php
index 7435837..4e8214b 100644
--- a/src/Bag/Pipelines/Pipes/Validate.php
+++ b/src/Bag/Pipelines/Pipes/Validate.php
@@ -35,7 +35,7 @@ public function __invoke(BagInput $input): BagInput
         $aliases = $input->params->aliases();
 
         $rules = LaravelCollection::wrap($bagClass::rules())->mapWithKeys(function (mixed $rules, string $key) use ($aliases) {
-            $key = $aliases['output'][$key] ?? $key;
+            $key = $aliases['input'][$key] ?? $key;
 
             return [$key => $rules];
         });