diff --git a/packages/backend/src/server/api/endpoints/admin/update-meta.ts b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
index 34bcce2898..40cc50fe7c 100644
--- a/packages/backend/src/server/api/endpoints/admin/update-meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
@@ -96,8 +96,8 @@ export const paramDef = {
 		tosUrl: { type: 'string', nullable: true },
 		repositoryUrl: { type: 'string' },
 		feedbackUrl: { type: 'string' },
-		impressumUrl: { type: 'string' },
-		privacyPolicyUrl: { type: 'string' },
+		impressumUrl: { type: 'string', nullable: true },
+		privacyPolicyUrl: { type: 'string', nullable: true },
 		useObjectStorage: { type: 'boolean' },
 		objectStorageBaseUrl: { type: 'string', nullable: true },
 		objectStorageBucket: { type: 'string', nullable: true },