diff --git a/fillpdf.install b/fillpdf.install
index 749b8f893165631c502570b072a753cffc138be5..b009b5924517d411d3ba9b1e164953be7623e8d2 100644
--- a/fillpdf.install
+++ b/fillpdf.install
@@ -402,3 +402,13 @@ function fillpdf_update_9503() {
   // Commit transaction.
   unset($transaction);
 }
+
+/**
+ * Rename 'local_service' plugin to 'local_server'.
+ */
+function fillpdf_update_9504() {
+  $settings = \Drupal::configFactory()->getEditable('fillpdf.settings');
+  if ($settings->get('backend') == 'local_service') {
+    $settings->set('backend', 'local_server')->save();
+  }
+}
diff --git a/src/Form/FillPdfSettingsForm.php b/src/Form/FillPdfSettingsForm.php
index b336ad32137ff4aad90064cfa70870e93c75fdfc..1e8e2347ee04374c0c30db64844f4d35b6604828 100644
--- a/src/Form/FillPdfSettingsForm.php
+++ b/src/Form/FillPdfSettingsForm.php
@@ -269,11 +269,11 @@ class FillPdfSettingsForm extends ConfigFormBase {
 
     $form['local_service'] = [
       '#type' => 'details',
-      '#title' => $this->t('Configure %label', ['%label' => $this->definitions['local_service']['label']]),
+      '#title' => $this->t('Configure %label', ['%label' => $this->definitions['local_server']['label']]),
       '#open' => TRUE,
       '#states' => [
         'visible' => [
-          ':input[name="backend"]' => ['value' => 'local_service'],
+          ':input[name="backend"]' => ['value' => 'local_server'],
         ],
       ],
     ];
@@ -359,7 +359,7 @@ class FillPdfSettingsForm extends ConfigFormBase {
         // @see https://www.drupal.org/project/fillpdf/issues/3040899
         break;
 
-      case 'local_service':
+      case 'local_server':
         // Set the form_state value to the Config object without saving.
         $config = $this->config('fillpdf.settings')->set('local_service_endpoint', $values['local_service_endpoint']);
         // Check for FillPDF LocalServer.
@@ -414,7 +414,7 @@ class FillPdfSettingsForm extends ConfigFormBase {
           ->set('remote_protocol', $values['remote_protocol']);
         break;
 
-      case 'local_service':
+      case 'local_server':
         $config->set('local_service_endpoint', $values['local_service_endpoint']);
         break;
 
diff --git a/src/Plugin/PdfBackend/LocalServerPdfBackend.php b/src/Plugin/PdfBackend/LocalServerPdfBackend.php
index 3f6526789c3c4384b255cbbf621d328fd753abc1..3a09449f9b8848fb05c07009f15dbe0afbbb8c44 100644
--- a/src/Plugin/PdfBackend/LocalServerPdfBackend.php
+++ b/src/Plugin/PdfBackend/LocalServerPdfBackend.php
@@ -17,7 +17,7 @@ use Symfony\Component\DependencyInjection\ContainerInterface;
  * LocalServer PdfBackend plugin.
  *
  * @PdfBackend(
- *   id = "local_service",
+ *   id = "local_server",
  *   label = @Translation("FillPDF LocalServer"),
  *   description = @Translation("Network-accessible, self-installed PDF API. You will need a VPS or dedicated server."),
  *   weight = 5
diff --git a/src/Plugin/PdfBackendManager.php b/src/Plugin/PdfBackendManager.php
index ec637b400f4706a85a5257282998ffdba8aa875c..73e577d5f1b1c417ad6e98d593d1e13c884ac812 100644
--- a/src/Plugin/PdfBackendManager.php
+++ b/src/Plugin/PdfBackendManager.php
@@ -2,6 +2,7 @@
 
 namespace Drupal\fillpdf\Plugin;
 
+use Drupal\Component\Plugin\FallbackPluginManagerInterface;
 use Drupal\Core\Plugin\DefaultPluginManager;
 use Drupal\Core\Cache\CacheBackendInterface;
 use Drupal\Core\Extension\ModuleHandlerInterface;
@@ -9,7 +10,7 @@ use Drupal\Core\Extension\ModuleHandlerInterface;
 /**
  * Provides the FillPDF PdfBackend plugin manager.
  */
-class PdfBackendManager extends DefaultPluginManager {
+class PdfBackendManager extends DefaultPluginManager implements FallbackPluginManagerInterface {
 
   /**
    * Constructs a new PdfBackendManager object.
@@ -29,6 +30,13 @@ class PdfBackendManager extends DefaultPluginManager {
     $this->setCacheBackend($cache_backend, 'fillpdf_pdfbackend_plugins');
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function getFallbackPluginId($plugin_id, array $configuration = []) {
+    return $plugin_id === 'local_service' ? 'local_server' : $plugin_id;
+  }
+
   /**
    * Gets the definitions of all FillPDF backend plugins.
    *
diff --git a/tests/src/Traits/TestFillPdfTrait.php b/tests/src/Traits/TestFillPdfTrait.php
index f37909aa2fac9fac64b41dcc65337fc521c345ea..4ebe67463f32f125e5c13e474d13b2954fef9c88 100644
--- a/tests/src/Traits/TestFillPdfTrait.php
+++ b/tests/src/Traits/TestFillPdfTrait.php
@@ -60,7 +60,7 @@ trait TestFillPdfTrait {
     $localServerEndpoint = getenv('FILLPDF_LOCAL_SERVER');
     $edit = [
       'template_scheme' => 'public',
-      'backend' => 'local_service',
+      'backend' => 'local_server',
       'local_service_endpoint' => $localServerEndpoint ?: 'http://127.0.0.1:8085',
     ];
     $this->drupalGet('admin/config/media/fillpdf');