diff --git a/ext/bg/js/api.js b/ext/bg/js/api.js
index ed7171b5..d12104bf 100644
--- a/ext/bg/js/api.js
+++ b/ext/bg/js/api.js
@@ -68,7 +68,8 @@ async function apiDefinitionAdd(definition, mode, context, optionsContext) {
         await audioInject(
             definition,
             options.anki.terms.fields,
-            options.general.audioSource
+            options.general.audioSource,
+            optionsContext
         );
     }
 
@@ -174,8 +175,8 @@ apiCommandExec.handlers = {
     }
 };
 
-async function apiAudioGetUrl(definition, source) {
-    return audioBuildUrl(definition, source);
+async function apiAudioGetUrl(definition, source, optionsContext) {
+    return audioBuildUrl(definition, source, optionsContext);
 }
 
 async function apiInjectScreenshot(definition, fields, screenshot) {
diff --git a/ext/bg/js/audio.js b/ext/bg/js/audio.js
index de4e80f3..36ce03cf 100644
--- a/ext/bg/js/audio.js
+++ b/ext/bg/js/audio.js
@@ -88,7 +88,7 @@ const audioUrlBuilders = {
     }
 };
 
-async function audioBuildUrl(definition, mode, cache={}) {
+async function audioBuildUrl(definition, mode, optionsContext, cache={}) {
     const cacheKey = `${mode}:${definition.expression}`;
     if (cache.hasOwnProperty(cacheKey)) {
         return Promise.resolve(cache[cacheKey]);
@@ -96,7 +96,7 @@ async function audioBuildUrl(definition, mode, cache={}) {
 
     if (audioUrlBuilders.hasOwnProperty(mode)) {
         const handler = audioUrlBuilders[mode];
-        return handler(definition).then(
+        return handler(definition, optionsContext).then(
             (url) => {
                 cache[cacheKey] = url;
                 return url;
@@ -138,7 +138,7 @@ function audioBuildFilename(definition) {
     }
 }
 
-async function audioInject(definition, fields, mode) {
+async function audioInject(definition, fields, mode, optionsContext) {
     let usesAudio = false;
     for (const name in fields) {
         if (fields[name].includes('{audio}')) {
@@ -157,7 +157,7 @@ async function audioInject(definition, fields, mode) {
             audioSourceDefinition = definition.expressions[0];
         }
 
-        const url = await audioBuildUrl(audioSourceDefinition, mode);
+        const url = await audioBuildUrl(audioSourceDefinition, mode, optionsContext);
         const filename = audioBuildFilename(audioSourceDefinition);
 
         if (url && filename) {
diff --git a/ext/bg/js/backend.js b/ext/bg/js/backend.js
index fb77b71e..453f4282 100644
--- a/ext/bg/js/backend.js
+++ b/ext/bg/js/backend.js
@@ -181,7 +181,7 @@ Backend.messageHandlers = {
     noteView: ({noteId}) => apiNoteView(noteId),
     templateRender: ({template, data, dynamic}) => apiTemplateRender(template, data, dynamic),
     commandExec: ({command}) => apiCommandExec(command),
-    audioGetUrl: ({definition, source}) => apiAudioGetUrl(definition, source),
+    audioGetUrl: ({definition, source, optionsContext}) => apiAudioGetUrl(definition, source, optionsContext),
     screenshotGet: ({options}, sender) => apiScreenshotGet(options, sender),
     forward: ({action, params}, sender) => apiForward(action, params, sender),
     frameInformationGet: (params, sender) => apiFrameInformationGet(sender),
diff --git a/ext/fg/js/api.js b/ext/fg/js/api.js
index d0ac649a..a553e514 100644
--- a/ext/fg/js/api.js
+++ b/ext/fg/js/api.js
@@ -45,8 +45,8 @@ function apiTemplateRender(template, data, dynamic) {
     return utilInvoke('templateRender', {data, template, dynamic});
 }
 
-function apiAudioGetUrl(definition, source) {
-    return utilInvoke('audioGetUrl', {definition, source});
+function apiAudioGetUrl(definition, source, optionsContext) {
+    return utilInvoke('audioGetUrl', {definition, source, optionsContext});
 }
 
 function apiCommandExec(command) {
diff --git a/ext/mixed/js/display.js b/ext/mixed/js/display.js
index 17370654..78e6d8e3 100644
--- a/ext/mixed/js/display.js
+++ b/ext/mixed/js/display.js
@@ -404,7 +404,7 @@ class Display {
             this.setSpinnerVisible(true);
 
             const expression = expressionIndex === -1 ? definition : definition.expressions[expressionIndex];
-            let url = await apiAudioGetUrl(expression, this.options.general.audioSource);
+            let url = await apiAudioGetUrl(expression, this.options.general.audioSource, this.optionsContext);
             if (!url) {
                 url = '/mixed/mp3/button.mp3';
             }