diff --git a/.luarc.json b/.luarc.json
index 98a61b1..8a2bec9 100644
--- a/.luarc.json
+++ b/.luarc.json
@@ -10,6 +10,7 @@
   "workspace": {
     "checkThirdParty": "Disable",
     "library": [
+      "$VIMRUNTIME",
       "test/plenary"
     ],
     "ignoreDir": [