diff --git a/src/Illuminate/Console/Concerns/InteractsWithSignals.php b/src/Illuminate/Console/Concerns/InteractsWithSignals.php
index 895072c15c72..4d0524c21c32 100644
--- a/src/Illuminate/Console/Concerns/InteractsWithSignals.php
+++ b/src/Illuminate/Console/Concerns/InteractsWithSignals.php
@@ -17,7 +17,9 @@ trait InteractsWithSignals
     /**
      * Define a callback to be run when the given signal(s) occurs.
      *
-     * @param  iterable<array-key, int>|int  $signals
+     * @template TSignals of iterable<array-key, int>|int
+     *
+     * @param  (\Closure():(TSignals))|TSignals  $signals
      * @param  callable(int $signal): void  $callback
      * @return void
      */
diff --git a/src/Illuminate/Foundation/Console/ServeCommand.php b/src/Illuminate/Foundation/Console/ServeCommand.php
index 416c8a2801ae..45ba5f9f3629 100644
--- a/src/Illuminate/Foundation/Console/ServeCommand.php
+++ b/src/Illuminate/Foundation/Console/ServeCommand.php
@@ -140,7 +140,7 @@ protected function startProcess($hasEnvironment)
             return in_array($key, static::$passthroughVariables) ? [$key => $value] : [$key => false];
         })->all());
 
-        $this->trap([SIGTERM, SIGINT, SIGHUP, SIGUSR1, SIGUSR2, SIGQUIT], function ($signal) use ($process) {
+        $this->trap(fn () => [SIGTERM, SIGINT, SIGHUP, SIGUSR1, SIGUSR2, SIGQUIT], function ($signal) use ($process) {
             if ($process->isRunning()) {
                 $process->stop(10, $signal);
             }