diff --git a/src/iframe/iframeview.js b/src/iframe/iframeview.js
index b58b73a..fd4c5e3 100644
--- a/src/iframe/iframeview.js
+++ b/src/iframe/iframeview.js
@@ -18,7 +18,7 @@ export default class IframeView extends View {
 	/**
 	 * Creates a new instance of the iframe view.
 	 *
-	 * @param {utils.Locale} [locale] The {@link ckeditor5.Editor#locale editor's locale} instance.
+	 * @param {utils.Locale} [locale] The {@link core.editor.Editor#locale editor's locale} instance.
 	 */
 	constructor( locale ) {
 		super( locale );
diff --git a/tests/button/button.js b/tests/button/button.js
index c0a353f..4003a28 100644
--- a/tests/button/button.js
+++ b/tests/button/button.js
@@ -9,7 +9,7 @@ import Button from '/ckeditor5/ui/button/button.js';
 import ButtonView from '/ckeditor5/ui/button/buttonview.js';
 import Model from '/ckeditor5/ui/model.js';
 
-import testUtils from '/tests/ckeditor5/_utils/utils.js';
+import testUtils from '/tests/core/_utils/utils.js';
 import Controller from '/ckeditor5/ui/controller.js';
 
 testUtils.createSinonSandbox();
diff --git a/tests/button/buttonview.js b/tests/button/buttonview.js
index 9e35a66..d7ff1fd 100644
--- a/tests/button/buttonview.js
+++ b/tests/button/buttonview.js
@@ -5,7 +5,7 @@
 
 /* bender-tags: ui, button */
 
-import testUtils from '/tests/ckeditor5/_utils/utils.js';
+import testUtils from '/tests/core/_utils/utils.js';
 import Button from '/ckeditor5/ui/button/button.js';
 import ButtonView from '/ckeditor5/ui/button/buttonview.js';
 import Model from '/ckeditor5/ui/model.js';
diff --git a/tests/list/list.js b/tests/list/list.js
index 75c5bd7..252cbc6 100644
--- a/tests/list/list.js
+++ b/tests/list/list.js
@@ -5,7 +5,7 @@
 
 /* bender-tags: ui, list */
 
-import testUtils from '/tests/ckeditor5/_utils/utils.js';
+import testUtils from '/tests/core/_utils/utils.js';
 
 import List from '/ckeditor5/ui/list/list.js';
 import ListView from '/ckeditor5/ui/list/listview.js';
diff --git a/tests/toolbar/sticky/stickytoolbarview.js b/tests/toolbar/sticky/stickytoolbarview.js
index f505e78..4079164 100644
--- a/tests/toolbar/sticky/stickytoolbarview.js
+++ b/tests/toolbar/sticky/stickytoolbarview.js
@@ -5,7 +5,7 @@
 
 /* bender-tags: ui, toolbar */
 
-import testUtils from '/tests/ckeditor5/_utils/utils.js';
+import testUtils from '/tests/core/_utils/utils.js';
 import StickyToolbar from '/ckeditor5/ui/toolbar/sticky/stickytoolbar.js';
 import StickyToolbarView from '/ckeditor5/ui/toolbar/sticky/stickytoolbarview.js';
 import ToolbarView from '/ckeditor5/ui/toolbar/toolbarview.js';