diff --git a/src/html-behavior.js b/src/html-behavior.js
index 5cd09ff5..864f16c7 100644
--- a/src/html-behavior.js
+++ b/src/html-behavior.js
@@ -26,6 +26,8 @@ function doProcessAttributes() {}
 * attribute functionality.
 */
 export class HtmlBehaviorResource {
+  viewFactory: ViewFactory;
+
   /**
   * Creates an instance of HtmlBehaviorResource.
   */
diff --git a/src/view-factory.js b/src/view-factory.js
index 07eb37c7..841b685e 100644
--- a/src/view-factory.js
+++ b/src/view-factory.js
@@ -361,6 +361,11 @@ export class ViewFactory {
   */
   isCaching = false;
 
+  /**
+  * The resources used to compile this factory.
+  */
+  resources: ViewResources;
+
   /**
   * Creates an instance of ViewFactory.
   * @param template The document fragment that serves as a template for the view to be created.