diff --git a/app/api/logbuch/[id]/route.ts b/app/api/logbuch/[id]/route.ts
index 1f4fc18..3dcb75b 100644
--- a/app/api/logbuch/[id]/route.ts
+++ b/app/api/logbuch/[id]/route.ts
@@ -18,7 +18,8 @@ export async function PUT(request: NextRequest, { params }: { params: Promise<{
     }
 
     const isAdmin = session.role?.includes('admin');
-    const isCreator = existingRows[0].created_by === session.beoId;
+    const createdBy = existingRows[0].created_by;
+    const isCreator = createdBy === null || createdBy === session.beoId;
 
     if (!isAdmin && !isCreator) {
       return NextResponse.json({ error: 'Keine Berechtigung zum Ändern dieses Eintrags' }, { status: 403 });
@@ -90,7 +91,8 @@ export async function DELETE(_request: NextRequest, { params }: { params: Promis
     }
 
     const isAdmin = session.role?.includes('admin');
-    const isCreator = existingRows[0].created_by === session.beoId;
+    const createdBy = existingRows[0].created_by;
+    const isCreator = createdBy === null || createdBy === session.beoId;
 
     if (!isAdmin && !isCreator) {
       return NextResponse.json({ error: 'Keine Berechtigung zum Löschen dieses Eintrags' }, { status: 403 });
diff --git a/package.json b/package.json
index 2891e35..9414232 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "logbuch",
-  "version": "1.6.2",
+  "version": "1.6.3",
   "private": true,
   "scripts": {
     "dev": "next dev",