diff --git a/internal/model/widget-templates.go b/internal/model/widget-templates.go
index aa6a078..b7ffa95 100644
--- a/internal/model/widget-templates.go
+++ b/internal/model/widget-templates.go
@@ -95,7 +95,7 @@ function playSpeech(text) {
   		}
   		return response.blob();
 	})
-	.then(response => {
+	.then(blob => {
 		const url = URL.createObjectURL(blob);
 		const audio = new Audio(url);