diff --git a/src/BrefRunner.php b/src/BrefRunner.php
index cd1bcda..65452ed 100644
--- a/src/BrefRunner.php
+++ b/src/BrefRunner.php
@@ -24,7 +24,7 @@ public function __construct(Handler $handler, int $loopMax)
 
     public function run(): int
     {
-        $lambda = LambdaRuntime::fromEnvironmentVariable();
+        $lambda = LambdaRuntime::fromEnvironmentVariable('symfony-runtime');
 
         $loops = 0;
         while (true) {
diff --git a/src/ConsoleApplicationRunner.php b/src/ConsoleApplicationRunner.php
index 31a2280..4a34d14 100644
--- a/src/ConsoleApplicationRunner.php
+++ b/src/ConsoleApplicationRunner.php
@@ -26,7 +26,7 @@ public function __construct(Application $application)
 
     public function run(): int
     {
-        $lambda = LambdaRuntime::fromEnvironmentVariable();
+        $lambda = LambdaRuntime::fromEnvironmentVariable('symfony-runtime-console');
 
         while (true) {
             $lambda->processNextEvent(function ($event, Context $context): array {