diff --git a/testing/marionette/actors/MarionetteFrameChild.jsm b/testing/marionette/actors/MarionetteFrameChild.jsm
index 6a8c8537ed56..2ed2f30d7581 100644
--- a/testing/marionette/actors/MarionetteFrameChild.jsm
+++ b/testing/marionette/actors/MarionetteFrameChild.jsm
@@ -10,14 +10,12 @@ const { XPCOMUtils } = ChromeUtils.import(
   "resource://gre/modules/XPCOMUtils.jsm"
 );
 
-const { element } = ChromeUtils.import(
-  "chrome://marionette/content/element.js"
-);
-const { error } = ChromeUtils.import("chrome://marionette/content/error.js");
-const { evaluate } = ChromeUtils.import(
-  "chrome://marionette/content/evaluate.js"
-);
-const { Log } = ChromeUtils.import("chrome://marionette/content/log.js");
+XPCOMUtils.defineLazyModuleGetters(this, {
+  element: "chrome://marionette/content/element.js",
+  error: "chrome://marionette/content/error.js",
+  evaluate: "chrome://marionette/content/evaluate.js",
+  Log: "chrome://marionette/content/log.js",
+});
 
 XPCOMUtils.defineLazyGetter(this, "logger", Log.get);
 
diff --git a/testing/marionette/actors/MarionetteFrameParent.jsm b/testing/marionette/actors/MarionetteFrameParent.jsm
index c6c48fa20837..5f95b5dc4359 100644
--- a/testing/marionette/actors/MarionetteFrameParent.jsm
+++ b/testing/marionette/actors/MarionetteFrameParent.jsm
@@ -10,15 +10,13 @@ const { XPCOMUtils } = ChromeUtils.import(
   "resource://gre/modules/XPCOMUtils.jsm"
 );
 
-const { EventEmitter } = ChromeUtils.import(
-  "resource://gre/modules/EventEmitter.jsm"
-);
+XPCOMUtils.defineLazyModuleGetters(this, {
+  EventEmitter: "resource://gre/modules/EventEmitter.jsm",
 
-const { error } = ChromeUtils.import("chrome://marionette/content/error.js");
-const { evaluate } = ChromeUtils.import(
-  "chrome://marionette/content/evaluate.js"
-);
-const { Log } = ChromeUtils.import("chrome://marionette/content/log.js");
+  error: "chrome://marionette/content/error.js",
+  evaluate: "chrome://marionette/content/evaluate.js",
+  Log: "chrome://marionette/content/log.js",
+});
 
 XPCOMUtils.defineLazyGetter(this, "logger", Log.get);