diff --git a/php/src/Controller/DockerController.php b/php/src/Controller/DockerController.php
index 2bff0295..81b920d0 100644
--- a/php/src/Controller/DockerController.php
+++ b/php/src/Controller/DockerController.php
@@ -178,13 +178,13 @@ readonly class DockerController {
         }
 
         if (isset($request->getParsedBody()['install_latest_major'])) {
-            $install_latest_major = '32';
+            $installLatestMajor = '32';
         } else {
-            $install_latest_major = '';
+            $installLatestMajor = '';
         }
         
         $this->configurationManager->startTransaction();
-        $this->configurationManager->install_latest_major = $install_latest_major;
+        $this->configurationManager->installLatestMajor = $installLatestMajor;
         // set AIO_URL
         $this->configurationManager->aioUrl = $host . ':' . (string)$port . $path;
         // set wasStartButtonClicked
diff --git a/php/src/Data/ConfigurationManager.php b/php/src/Data/ConfigurationManager.php
index dd7bce63..2a233ff8 100644
--- a/php/src/Data/ConfigurationManager.php
+++ b/php/src/Data/ConfigurationManager.php
@@ -68,7 +68,7 @@ class ConfigurationManager
         set { $this->set('wasStartButtonClicked', $value); }
     }
 
-    public string $install_latest_major {
+    public string $installLatestMajor {
         // Type-cast because old configs could have integers for this key.
         get => (string) $this->get('install_latest_major', '');
         set { $this->set('install_latest_major', $value); }
@@ -1078,7 +1078,7 @@ class ConfigurationManager
             'NEXTCLOUD_STARTUP_APPS' => $this->GetNextcloudStartupApps(),
             'NEXTCLOUD_ADDITIONAL_APKS' => $this->GetNextcloudAdditionalApks(),
             'NEXTCLOUD_ADDITIONAL_PHP_EXTENSIONS' => $this->GetNextcloudAdditionalPhpExtensions(),
-            'INSTALL_LATEST_MAJOR' => $this->install_latest_major,
+            'INSTALL_LATEST_MAJOR' => $this->installLatestMajor,
             'REMOVE_DISABLED_APPS' => $this->shouldDisabledAppsGetRemoved() ? 'yes' : '',
             // Allow to get local ip-address of database container which allows to talk to it even in host mode (the container that requires this needs to be started first then)
             'AIO_DATABASE_HOST' => gethostbyname('nextcloud-aio-database'),