diff --git a/nodefs-provider-sample/package.json b/nodefs-provider-sample/package.json
index f1264977..b30cf113 100644
--- a/nodefs-provider-sample/package.json
+++ b/nodefs-provider-sample/package.json
@@ -11,7 +11,7 @@
         "Other"
     ],
     "activationEvents": [
-        "*"
+        "onFileSystem:datei"
     ],
     "main": "./out/extension",
     "scripts": {