diff --git a/.vscode/settings.json b/.vscode/settings.json
index e13468a..ed93dab 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -13,5 +13,9 @@
         ],
         "editor.formatOnSave": true
     },
-    "sarif-viewer.connectToGithubCodeScanning": "off"
+    "sarif-viewer.connectToGithubCodeScanning": "off",
+    "ocaml.sandbox": {
+        "kind": "opam",
+        "switch": "${workspaceFolder:ocaml-aoc}"
+    }
 }
\ No newline at end of file