diff --git a/test/unit/sub/resolveurl-elements.js b/test/unit/sub/resolveurl-elements.js
index 0812929e87..f82193096a 100644
--- a/test/unit/sub/resolveurl-elements.js
+++ b/test/unit/sub/resolveurl-elements.js
@@ -12,9 +12,11 @@ import { html } from '../../../lib/utils/html-tag.js';
 import { PolymerElement } from '../../../polymer-element.js';
 import { DomModule } from '../../../lib/elements/dom-module.js';
 import { Polymer } from '../../../lib/legacy/polymer-fn.js';
+import { pathFromUrl } from '../utils/resolve-url.js';
 const $_documentContainer = document.createElement('div');
 $_documentContainer.setAttribute('style', 'display: none;');
-$_documentContainer.innerHTML = `<dom-module id="p-r-ap" assetpath="../../assets/"></dom-module>`;
+const baseAssetPath = pathFromUrl(import.meta.url);
+$_documentContainer.innerHTML = `<dom-module id="p-r-ap" assetpath="${baseAssetPath}../../assets/"></dom-module>`;
 document.head.appendChild($_documentContainer);
 class PR extends PolymerElement {
   static get template() {
diff --git a/test/unit/sub/style-import.js b/test/unit/sub/style-import.js
index 3273a2c312..95fbcd5fe9 100644
--- a/test/unit/sub/style-import.js
+++ b/test/unit/sub/style-import.js
@@ -1,7 +1,9 @@
+import { pathFromUrl } from '../utils/resolve-url.js';
+
 const $_documentContainer = document.createElement('div');
 $_documentContainer.setAttribute('style', 'display: none;');
-
-$_documentContainer.innerHTML = `<dom-module id="style-import">
+const baseAssetPath = pathFromUrl(import.meta.url);
+$_documentContainer.innerHTML = `<dom-module id="style-import" assetpath="${baseAssetPath}">
   <template>
     <style>
       .foo {
@@ -11,7 +13,7 @@ $_documentContainer.innerHTML = `<dom-module id="style-import">
       }
     </style>
   </template>
-</dom-module><dom-module id="style-import2">
+</dom-module><dom-module id="style-import2" assetpath="${baseAssetPath}">
   <template>
     <style>
       .foo {