diff --git a/lib/private/Files/Lock/LockManager.php b/lib/private/Files/Lock/LockManager.php
index 4c7e1427d02..329c64b0d9d 100644
--- a/lib/private/Files/Lock/LockManager.php
+++ b/lib/private/Files/Lock/LockManager.php
@@ -21,7 +21,7 @@ class LockManager implements ILockManager {
 	private ?LockContext $lockInScope = null;
 
 	public function registerLockProvider(ILockProvider $lockProvider): void {
-		if ($this->lockProvider) {
+		if ($this->lockProvider || $this->lockProviderClass) {
 			throw new PreConditionNotMetException('There is already a registered lock provider');
 		}