diff --git a/package.json b/package.json
index 0ee2ee3..184aa4a 100644
--- a/package.json
+++ b/package.json
@@ -10,8 +10,8 @@
     "Other"
   ],
   "activationEvents": [
-    "workspaceContains:mist.json",
-    "workspaceContains:*/mist.json"
+    "workspaceContains:Cargo.toml",
+    "workspaceContains:*/Cagro.toml"
   ],
   "main": "./out/extension.js",
   "contributes": {},
diff --git a/src/extension.ts b/src/extension.ts
index 654db22..a910eca 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -31,7 +31,7 @@ export async function activate(context: ExtensionContext) {
 		// Register the server for plain text documents
 		documentSelector: [{ scheme: 'file', language: 'mist' }],
 		synchronize: {
-			fileEvents: workspace.createFileSystemWatcher('**/mist.json')
+			fileEvents: workspace.createFileSystemWatcher('**/*.mist')
 		}
 	};