diff --git a/ext/bg/js/api.js b/ext/bg/js/api.js
index c33ba709..4b2bacd7 100644
--- a/ext/bg/js/api.js
+++ b/ext/bg/js/api.js
@@ -64,7 +64,7 @@ async function apiDefinitionAdd(definition, mode, context) {
         );
     }
 
-    if (context.screenshot) {
+    if (context && context.screenshot) {
         await apiInjectScreenshot(
             definition,
             options.anki.terms.fields,
diff --git a/ext/fg/js/api.js b/ext/fg/js/api.js
index 0c86b412..99ad307c 100644
--- a/ext/fg/js/api.js
+++ b/ext/fg/js/api.js
@@ -49,6 +49,10 @@ function apiTemplateRender(template, data, dynamic) {
     return utilInvoke('templateRender', {data, template, dynamic});
 }
 
+function apiAudioGetUrl(definition, source) {
+    return utilInvoke('audioGetUrl', {definition, source});
+}
+
 function apiCommandExec(command) {
     return utilInvoke('commandExec', {command});
 }