diff --git a/data/FilterList.json b/data/FilterList.json
index 87fe54996..9fa0efe70 100644
--- a/data/FilterList.json
+++ b/data/FilterList.json
@@ -8528,7 +8528,7 @@
     "name": "gmbkslist (ABP)",
     "syntaxId": 3,
     "viewUrl": "https://raw.githubusercontent.com/DandelionSprout/adfilt/master/AncientLibrary/gmbkslist.txt",
-    "viewUrl": "https://repo.or.cz/FilterMirrorRepo.git/blob_plain/refs/heads/master:/AncientLibrary/gmbkslist.txt"
+    "viewUrlMirror1": "https://repo.or.cz/FilterMirrorRepo.git/blob_plain/refs/heads/master:/AncientLibrary/gmbkslist.txt"
   },
   {
     "id": 815,