diff --git a/ext/bg/js/anki-note-builder.js b/ext/bg/js/anki-note-builder.js
index f7555280..be39ff43 100644
--- a/ext/bg/js/anki-note-builder.js
+++ b/ext/bg/js/anki-note-builder.js
@@ -16,10 +16,9 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-/*global apiTemplateRender*/
-
 class AnkiNoteBuilder {
-    constructor() {
+    constructor({renderTemplate}) {
+        this._renderTemplate = renderTemplate;
         this._markers = new Set([
             'audio',
             'character',
@@ -100,7 +99,7 @@ class AnkiNoteBuilder {
             }
             data.marker = marker;
             try {
-                return await apiTemplateRender(templates, data);
+                return await this._renderTemplate(templates, data);
             } catch (e) {
                 if (errors) { errors.push(e); }
                 return `{${marker}-render-error}`;
diff --git a/ext/bg/js/api.js b/ext/bg/js/api.js
index 4e5d81db..9a05023e 100644
--- a/ext/bg/js/api.js
+++ b/ext/bg/js/api.js
@@ -17,10 +17,6 @@
  */
 
 
-function apiTemplateRender(template, data) {
-    return _apiInvoke('templateRender', {data, template});
-}
-
 function _apiInvoke(action, params={}) {
     const data = {action, params};
     return new Promise((resolve, reject) => {
diff --git a/ext/bg/js/backend.js b/ext/bg/js/backend.js
index 929281da..6e5235ed 100644
--- a/ext/bg/js/backend.js
+++ b/ext/bg/js/backend.js
@@ -31,7 +31,7 @@ class Backend {
         this.anki = new AnkiNull();
         this.mecab = new Mecab();
         this.clipboardMonitor = new ClipboardMonitor({getClipboard: this._onApiClipboardGet.bind(this)});
-        this.ankiNoteBuilder = new AnkiNoteBuilder();
+        this.ankiNoteBuilder = new AnkiNoteBuilder({renderTemplate: this._renderTemplate.bind(this)});
         this.options = null;
         this.optionsSchema = null;
         this.defaultAnkiFieldTemplates = null;
@@ -507,7 +507,7 @@ class Backend {
     }
 
     async _onApiTemplateRender({template, data}) {
-        return handlebarsRenderDynamic(template, data);
+        return this._renderTemplate(template, data);
     }
 
     async _onApiCommandExec({command, params}) {
@@ -811,6 +811,10 @@ class Backend {
         definition.screenshotFileName = filename;
     }
 
+    async _renderTemplate(template, data) {
+        return handlebarsRenderDynamic(template, data);
+    }
+
     static _getTabUrl(tab) {
         return new Promise((resolve) => {
             chrome.tabs.sendMessage(tab.id, {action: 'getUrl'}, {frameId: 0}, (response) => {
diff --git a/ext/bg/js/settings/anki-templates.js b/ext/bg/js/settings/anki-templates.js
index 32a990f9..b1665048 100644
--- a/ext/bg/js/settings/anki-templates.js
+++ b/ext/bg/js/settings/anki-templates.js
@@ -18,7 +18,7 @@
 
 /*global getOptionsContext, getOptionsMutable, settingsSaveOptions
 ankiGetFieldMarkers, ankiGetFieldMarkersHtml
-apiOptionsGet, apiTermsFind, apiGetDefaultAnkiFieldTemplates,
+apiOptionsGet, apiTermsFind, apiGetDefaultAnkiFieldTemplates, apiTemplateRender
 AnkiNoteBuilder*/
 
 function onAnkiFieldTemplatesReset(e) {
@@ -93,7 +93,7 @@ async function ankiTemplatesValidate(infoNode, field, mode, showSuccessResult, i
             const options = await apiOptionsGet(optionsContext);
             let templates = options.anki.fieldTemplates;
             if (typeof templates !== 'string') { templates = await apiGetDefaultAnkiFieldTemplates(); }
-            const ankiNoteBuilder = new AnkiNoteBuilder();
+            const ankiNoteBuilder = new AnkiNoteBuilder({renderTemplate: apiTemplateRender});
             result = await ankiNoteBuilder.formatField(field, definition, mode, options, templates, exceptions);
         }
     } catch (e) {