diff --git a/src/Service/Search/ExternalResourceFactory.php b/src/Service/Search/ExternalResourceFactory.php
index 0ad9885..4b0eb75 100644
--- a/src/Service/Search/ExternalResourceFactory.php
+++ b/src/Service/Search/ExternalResourceFactory.php
@@ -65,7 +65,7 @@ private function getField(
         string $name,
         string $default = ''
     ): string {
-        $value = $document->getFields()[$name];
+        $value = $document->getFields()[$name] ?? null;
         if ($value === null) {
             return $default;
         }
diff --git a/test/Console/Command/IndexerTest.php b/test/Console/Command/IndexerTest.php
index 6323846..0e04944 100644
--- a/test/Console/Command/IndexerTest.php
+++ b/test/Console/Command/IndexerTest.php
@@ -142,20 +142,15 @@ public function testExecuteWithoutIndexer(): void
 
         // the output of the command in the console
         $output = $commandTester->getDisplay();
-        // phpcs:disable
         $this->assertEquals(
             <<<EOF
-
 Channel: WWW
 ============
 
- [ERROR] No indexer available                                                                                           
-
-
+ [ERROR] No indexer available
 EOF,
-            $output
+            trim($output)
         );
-        // phpcs:enable
     }
     public function testExecuteSelectIndexer(): void
     {