diff --git a/php/public/index.php b/php/public/index.php
index d4f4799f..7037946a 100644
--- a/php/public/index.php
+++ b/php/public/index.php
@@ -103,7 +103,7 @@ $app->get('/containers', function (Request $request, Response $response, array $
         'has_backup_run_once' => $configurationManager->hasBackupRunOnce(),
         'is_backup_container_running' => $dockerActionManager->isBackupContainerRunning(),
         'backup_exit_code' => $dockerActionManager->GetBackupcontainerExitCode(),
-        'is_instance_restore_attempt' => $configurationManager->instance_restore_attempt,
+        'is_instance_restore_attempt' => $configurationManager->instanceRestoreAttempt,
         'borg_backup_mode' => $configurationManager->backupMode,
         'was_start_button_clicked' => $configurationManager->wasStartButtonClicked,
         'has_update_available' => $dockerActionManager->isAnyUpdateAvailable(),
diff --git a/php/src/Controller/DockerController.php b/php/src/Controller/DockerController.php
index 862665c3..c420bba3 100644
--- a/php/src/Controller/DockerController.php
+++ b/php/src/Controller/DockerController.php
@@ -154,7 +154,7 @@ readonly class DockerController {
     public function StartBackupContainerTest(Request $request, Response $response, array $args) : Response {
         $this->configurationManager->startTransaction();
         $this->configurationManager->backupMode = 'test';
-        $this->configurationManager->instance_restore_attempt = false;
+        $this->configurationManager->instanceRestoreAttempt = false;
         $this->configurationManager->commitTransaction();
 
         $id = self::TOP_CONTAINER;
diff --git a/php/src/Data/ConfigurationManager.php b/php/src/Data/ConfigurationManager.php
index 340e59d9..94e8ae71 100644
--- a/php/src/Data/ConfigurationManager.php
+++ b/php/src/Data/ConfigurationManager.php
@@ -51,7 +51,7 @@ class ConfigurationManager
         set { $this->set('backup-mode', $value); }
     }
 
-    public bool $instance_restore_attempt {
+    public bool $instanceRestoreAttempt {
         // Type-cast because old configs could have 1/'' for this key.
         get => (bool) $this->get('instance_restore_attempt', false);
         set { $this->set('instance_restore_attempt', $value); }
@@ -536,7 +536,7 @@ class ConfigurationManager
         $this->borg_backup_host_location = $location;
         $this->borg_remote_repo = $repo;
         $this->borg_restore_password = $password;
-        $this->instance_restore_attempt = true;
+        $this->instanceRestoreAttempt = true;
         $this->commitTransaction();
     }