diff --git a/_publications/2023-07-11-portmaster-v1.1.md b/_publications/2023-07-11-portmaster-v1.1.md
index 7fc9ded..aeefcfa 100644
--- a/_publications/2023-07-11-portmaster-v1.1.md
+++ b/_publications/2023-07-11-portmaster-v1.1.md
@@ -6,7 +6,7 @@ title: "Portmaster 1.1"
 date: 2023-07-11
 author: Raphael
 summary: Updated SPN map and lots of optimizations.
-custom_thumbnail_name: release_1.1.png
+custom_thumbnail_name: release_1.1
 portmaster_plug: true
 portmaster_update: true
 ---