diff --git a/src/add/observable/dom/ajax.ts b/src/add/observable/dom/ajax.ts
index 4aed371739..ae6923e77b 100644
--- a/src/add/observable/dom/ajax.ts
+++ b/src/add/observable/dom/ajax.ts
@@ -1,5 +1,10 @@
+/**
+ * Everything in this file is generated by the 'tools/generate-operator-patches.ts' script.
+ * Any manual edits to this file will be lost next time the script is run.
+ **/
 import {Observable} from '../../../Observable';
-import { AjaxObservable, AjaxCreationMethod } from '../../../observable/dom/ajax';
+import {AjaxObservable} from '../../../observable/dom/ajax';
+
 Observable.ajax = AjaxObservable.create;
 
-export var _void: void;
+export var _void: void;
\ No newline at end of file
diff --git a/src/add/observable/dom/webSocket.ts b/src/add/observable/dom/webSocket.ts
index 993f0c0a4e..e4b660c4f8 100644
--- a/src/add/observable/dom/webSocket.ts
+++ b/src/add/observable/dom/webSocket.ts
@@ -1,5 +1,10 @@
+/**
+ * Everything in this file is generated by the 'tools/generate-operator-patches.ts' script.
+ * Any manual edits to this file will be lost next time the script is run.
+ **/
 import {Observable} from '../../../Observable';
 import {WebSocketSubject} from '../../../observable/dom/webSocket';
+
 Observable.webSocket = WebSocketSubject.create;
 
-export var _void: void;
+export var _void: void;
\ No newline at end of file