diff --git a/src/AsyncQueue/ClosureJob.php b/src/AsyncQueue/ClosureJob.php
index 296fe62..bfd3b00 100644
--- a/src/AsyncQueue/ClosureJob.php
+++ b/src/AsyncQueue/ClosureJob.php
@@ -80,7 +80,7 @@ protected function getInjections(array $definitions, string $callableName, array
     {
         $injections = [];
 
-        foreach ($definitions ?? [] as $pos => $definition) {
+        foreach ($definitions as $pos => $definition) {
             $value = $arguments[$pos] ?? $arguments[$definition->getMeta('name')] ?? null;
             if ($value === null) {
                 if ($definition->getMeta('defaultValueAvailable')) {